The bad fortune of the good turns their faces up to heaven; the good fortune of the bad bows their heads down to the earth.
However much you are read in theory, if thou hast no practice thou art ignorant
Make no friendship with an elephant keeper If you have no room to entertain an elephant
Whoever recounts to you the faults of your neighbour will doubtless expose your defects to others.
A man of virtue, judgment, and prudence speaks not until there is silence.
God preserve us! If men knew what is done in secret, no one would be free from the interference of others.