"A friend to all is a friend to none" - Aristotle. What does this exactly mean?

Why shouldn't a person be friendly to everyone? Is "being friendly" and "being a friend" being differentiated here?

Also, I consider a person as one's friend only if that person doesn't betray his/her other friends. So going by my rule of friendship, there won't be any problem if my friend is a friend to every person, since he/she is not going to give up on me and neither he/she will give up on his/her other friends when he/she us spending his time with me.

What is the main context under which this proverb becomes true?

Solution 1:

Early instances of the saying in English

A 1634 translation (evidently first published in 1623) of Matheo Aleman, The Rogue: Or, The Life of Guzman de Alfarache, third edition (1634) offers an interesting gloss on the reasoning behind this old saying:

Men ought to make the same choice of their friends, as they doe of good bookes. For their happinesse consists not neither in the greatnesse of their number, nor the curiousnesse of their binding, but rather to have a few, and those good and approved Authors. For oftentimes, it falleth out, that many friends are rather a hindrance, than a helpe to true friendship: For he is a friend to none, that is a friend to all. Nor are we to choose a friend for our entertainment only,and merrily to spend the time withall, but to make choise of such a one, as may benefit both our soule, and our bodie: one that without respect of humae interest, will advise him to observe the divine precepts. Not only to represent them unto him, but to speake to the purpose, to admonish him to the observation of them, and to instruct him in the true knowledge of them. And if he be called a true friend who, meerely out of friendship, tells his friend the naked truth without masking or disguising it, not as a third person, but as to one, that is properly his owne, and as freely as if he should treat of any thing belonging to himself, or that he himselfe would desire, his friend should say the same to him, on the same occasion, of which sort of friends, that carrie that sincerity and plainnesse with them, few are now a-dayes to bee found, in whom a man may have that assured confidence, and entire satisfaction.

Another perspective, this one with an overtly religious edge, appears in Samuel Crook, Ta Diapheronta, or, Divine Characters (1658):

But he that is a friend to all men, is a friend to no man, and least of all to himself. For he must promise so much, that he cannot performe withall: and so breaking promise with some, he is trusted at length by none. Therefore, as he who boasted he had no enemy, was well reproved by Chilon, when he asked him, if he had any friend. So he is farre from a capacity to be truly befriended of any, who is seemingly a friend to all; but really a friend to none, and, encreaseth enemies by pretending friendship.

On the contrary, The true Christian is a friend to none that are enemies to God.

Interestingly Joseph Symonds, Sight and Faith, or Meditations on 2 Cor. 5.7 (1651) makes the universal love of Jesus particular to each person as if to avoid this criticism:

Christ is so a Friend to every one, as if he were a Friend to none besides; and hence it is, that they not onely said, Our Lord, and our God, but my Lord, and my God.

William Seward, Anecdotes of Some Distinguished Persons, Chiefly of the Present and the Preceding Two Centuries, second edition, volume 3 (1795) has this:

Guicciardini [1483–1540] again observes, "As he that is a friend to all is a true friend to none, so that which has many heads, has in reality no head at all. A Multitude is this many-headed monster, which hath neither a head for brains, and most assuredly no brains for government. ..."

Clearly, "A friend to all is a friend to none" has been an adage in English for several centuries.

Aristotle on friendship

Although Aristotle never wrote (in Greek) the terse wording "A friend to all is a friend to none," he seems to have agreed with the sentiment. He analyzes the nature and limits of friendship in Book 9, chapter 10, pages 1170–1171 of the Nicomachean Ethics. First he distinguishes between "friends made with a view to utility," "friends made with a view to pleasure," and "good friends." Then he focuses on the natural constraints on the third category:

So for friends, too, there is a fixed number—perhaps the largest number with whom one can live together (for that, we found, is thought to be very characteristic of friendship); and that one cannot live with many people and divide oneself up among them is plain. Further, they too must be friends of one another, if they are all to spend their days together; and it is a hard business for this condition to be fulfilled with a large number. It is found difficult, too, to rejoice and to grieve in an intimate way with many people, for it may likely happen that one has at once to be happy with one friend and to mourn with another. Presumably, then, it is well not to seek to have as many friends as possible, but as many as are enough for the purpose of living together; for it would seem actually impossible to be a great friend to many people. This is why one cannot love several people; love is ideally a sort of excess of friendship, and that can only be felt towards one person; therefore great friendship, too, can only be felt towards a few people. This seems to be confirmed in practice; for we do not find many people who are friends in a comradely way of friendship, and the famous friendships of this sort are always between two people. Those who have many friends and mix intimately with them all are thought to be no one's friend, except in the way proper to fellow-citizens, and such people are also called obsequious. In the way proper to fellow-citizens, indeed, it is possible to be the friend of many and yet not be obsequious but a genuinely good man; but one cannot have with many people the friendship based on virtue and on the character of our friends themselves, and we must be content if we find even a few such.

^{[Translation from the Oxford University Press edition, W.D. Ross, editor.]}

The words boldfaced above may well be the ultimate source of the expression, "A friend to all is a friend to none"; but it is important to bear in mind that Aristotle is concerned in this discussion with intimate friendship, not merely the presumptive good will of fellow citizens. There is no objective constraint on the human condition that prevents one from treating everyone else politely and pleasantly. But Aristotle argues that there are natural constraints that prevent one from being everyone else's intimate friend. Being a close friend entails certain obligations such as availability, sympathy, shared ethical standards, and shared emotions when the friend feels elation or grief.

That's the context for Aristotle's analysis of the practical limitations governing how many friends a person should (and indeed can) have. His analysis also seems consistent with the reasoning underlying the assertions of Aleman, Crook, and Guicciardini above.

Update (September 2, 2021): EEBO search results

A search of Eary English Books Online turns up a match for the expression that is seven years older than the one that appears in the 1623 translation of The Rogue. From Barnabe Rich, My Ladies Looking Glasse VVherein may be Discerned a Wise Man from a Foole, a Good Woman from a Bad: And the True Resemblance of Vice, Masked Vnder the Vizard of Vertue (1616):

But he that hath pouertie to cast vp his accounts, and is become Needes Embassador, to beg or to borrow, if he finde a friend to supply his wants, I say such a friend is more precious, & more rare to be found, then Platos Commonwealth, Moores Eutopia, Ciceroes orator, or Baldesers Courtier: he that is a friend to all can be friend to none, but it is nothing so smarting to be called a Niggard or to be reputed for a Miser, as to haue it said, He is euery mans friend but his owne.

It also finds this instance from Thomas Fuller, Good Thoughts in Bad Times Consisting of Personall Meditations, Scripture Observations, Historicall Applications, Mixt Contemplations (1645) makes the same connection tthat Rich made in 1616 and Crook made in 1658 between the the main expression and the idea of not being a friend to oneself:

I Perceive there is in the world a good Nature, falsely so called, as being no∣thing else, but a facill and flexible Disposition, wax for every impression. What others are so bold to beg, they are so bashfull as not to deny. Such Osiers, can never make Beams to bear Stresse, in Church and State. If this be good Nature, let me alwayes be a Clown. If this be good Fellowship, let me alwayes be a Churle. Give me to set a Sturdy Porter before my Soul, who may not equally open to every Commer. I cannot conceive, how he can be a Friend to any, who is a friend to all, and the worst Foe to himself.

A 1658 verse translation of Ovid, Ovid's Invective or Curse Against Ibis suggests that Ovid's work may have been the immediate source that earlier English writers drew on for the expression, although they did not mention this text:

He that is a friend to all, is a friend to none; he that sincerely is a friend to one, is truly a friend to himself: for a friend is second self. Let no man therefore, like Janus, bear two faces under one hood, nor blow hot and cold out of one mouth. Let friends like Harpocrates twins, laugh and cry together, partake and sympathize in every estate. Learn of our voluntary friend, and undeserved Saviour, that freely died, not with us, but for us, not for his friends, but enemies.

In any case, Ovid (or his allegedly faithful and familiar translator) provides context for understanding the connection between the assertion that a friend to all is a friend to none and the corollary that a friend to all is an enemy of himself: it is because sincerity in friendship turns the friend into a second self—and no human has the capacity to serve the needs and interests of an endless number of additional selves.

Solution 2:

Key to understanding this is the difference between "being a friend to someone" and "being friendly to someone". They are very different.

"Being a friend" means providing support to someone when they need it, and also often spending some of your leisure time with them. It means prioritising that person over other people, and sometimes your own needs. This makes friendship sound like a chore - obviously it is usually fun, but i'm focusing on the things that would take up your time. And, the flip side is that they are a friend to you when you need it.

So, given that you have to provide a certain amount of your time and energy to maintaining a friendship, and you have only a finite amount of time and energy, if you try to spread this too thinly by trying to be a friend to too many people, you will fail to achieve it with anyone. That's what the saying means.

In contrast, "being friendly" just means "being nice to people that you meet". It doesn't require any extra time, it's just a style of behaviour.