A word to the wise ain't necessary, it's the stupid ones that need advice.
A wise man can learn more from a foolish question than a fool can learn from a wise answer.
Many words have been granted me, and some are wise, and some are false, but only three are holy: "I will it!
The fool wonder the wise man asks.
To write well, express yourself like the common people, but think like a wise man.
The fool wonders, the wise man asks.