Kings may be judges of the earth, but wise men are the judges of kings.
The first step in the acquisition of wisdom is silence, the second listening, the third memory, the fourth practice, the fifth teaching others.
My friend is he who will tell me my faults in private.
Your secret is your prisoner; once you reveal it, you become its slave.
I am better able to retract what I did not say than what I did.
Riches bring anxiety; wisdom gives peace of mind.