Do you have English counterpart to “To ask a question is a shame of a moment. Not to ask the question is a shame for whole life”?

I doubt whether my question is worth asking or being answered every time I’m posting a question, and ask myself, “Doesn’t it look too naive or primitive a question?”
However, I keep posting questions anyway, encouraged by the old Japanese saying, “Kikuwa ittoki-no haji, Kikanuwa matudai-no haji” meaning, “To ask a question is a shame of a moment. Not to ask the question is a shame (regret) that lasts for your whole (eternal) life.”

Confucius said, "It's not a problem that you don't know. It's the problem that you don't know what you don't know."

By following this maxim, I think I’m able to build knowledge of English expressions. I’m curious to know whether you have an English counterpart to “To ask a question is a shame of a moment. Not to ask the question is a shame for whole your life”, or any proverb encouraging questions.

I usually hear (and say):

The only stupid question is one not asked.

I can't remember where I heard/read this, but here goes:

Better to ask a question and appear stupid now, than not ask a question and remain stupid forever.