A man is insensible to the relish of prosperity until he has tasted adversity.
It is safer to be silent than to reveal one's secret to any one, and telling him not to mention it.
Every person thinks his own intellect perfect, and his own child handsome.
However much you are read in theory, if thou hast no practice thou art ignorant
Be not in the desire of thine own ease.
If a piece of worthless stone can bruise a cup of gold, its worth is not increased, nor that of the gold diminished.