Dorian is far too wise not to do foolish things now and then.
The foolish man conceives the idea of 'self.' The wise man sees there is no ground on which to build the idea of 'self;' thus, he has a right conception of the world and well concludes that all compounds amassed by sorrow will be dissolved again, but the truth will remain.
To be idle is a short road to death and to be diligent is a way of life; foolish people are idle, wise people are diligent.
Better a witty fool than a foolish wit.
A wise man can learn more from a foolish question than a fool can learn from a wise answer.
There is a foolish corner in the brain of the wisest man.
People always more and more foolish, unless they take care to grow wiser and wiser.