The fool doth think he is wise, but the wise man knows himself to be a fool. – William Shakespeare As You Like It, Act 5, Scene 1.
It is a wise man that does know the contented man is never poor, whilst the discontented man is never rich. – Frank Herbert
He is a wise man who does not grieve for the things which he has not, but rejoices for those which he has. – Epictetus
It is a wise man who said that there is no greater inequality than the equal treatment of unequals. – Felix Frankfurter
The two powers which in my opinion constitute a wise man are those of bearing and forbearing. – Epictetus
A wise man will live as much within his wit as within his income. – Philip Stanhope, 4th Earl of Chesterfield
Everyone who hears these words of mine and puts them into practice is like a wise man who built his house on the rock. The rain came down, the streams rose, and the winds blew and beat against that house, and it fell with a great crash. – The Bible Matthew 7:26-28
The wise man does not lay up his own treasures. The more he gives to others, the more he has for his own. – Lao Tzu
Keep to the middle if you wish to keep moderation. The mid way is the safe way. Moderation abides in the mean, and moderation is virtue. Every abiding place outside the bounds of moderation is only exile to the wise man. – Saint Bernard
There is no one thoroughly despicable. We cannot descend much lower than an idiot; and an idiot has some advantages over a wise man. – William Hazlitt