It needs as much generosity to take as to give.
However bad a man, he will have some friends: however good, he will have some enemies.
Doubt is the tax man pays for the luxury of useless knowledge.
If silence is good for the wise, how much better is it for the foolish!
As the sea is beautiful not only in calm but also in storm, so is happiness found not only in peace but also in strife.
Experience, if we only learn by it, is cheap at any price.