Is Shakespeare proper English? [closed]
Shakespeare wrote highly inventive, poetic English of his time. Some of what he wrote uses words, grammatical forms and syntax that are no longer current, and can be difficult for modern readers or hearers to understand. Some of what he wrote uses poetic phrases or syntax which might have been difficult even for contemporaries to understand fully.
There are plenty of editions of Shakespeare which explicate or translate his text, some better than others.
In order to answer whether it is "proper" English or not, you will have to give us a comprehensive characterisation of what you regard as "proper".
But I think I can safely say that the quotation above (which I assume is attached to a section on objects) is inserted for amusement or artistic delight, and has no connection with the text apart from the word "object" and the suggestion that a multiplicity of them can be confusing.
As a general rule of thumb, we consider Shakespeare to be the first well-known writer of "Modern English". That doesn't mean language hasn't changed in several hundred years since he his time. It means that (poetic imagery and cultural references aside) we can mostly understand him - unlike Chaucer, which most people can't understand without a lot of help.
On the specifics, Divides one thing entire to many objects simply means "Takes something which is meaningfully identifiable as a single entity, and divides it into constituent parts".
As an example, a motorcar can be divided into gearing cogs, carburettor needles, tyre valves, etc. Shakespeare obviously wasn't thinking of a motorcar, but it certainly illustrates what he goes on to say about perspectives.
Unless you're a mechanic, the pile of components that make up a motorcar may represent nothing but confusion, in the same way that you may end up with no useful understanding of a situation if you try to grasp it from multiple perspectives. Similar to the difficulties we face looking at an example of "multiple perspectives" in Picasso's Cubist paintings.