Whatever you do, do it well.
Forgiveness is better than revenge
The measure of a man is what he does with power.
Know the right moment.
Forbear to speak evil not only of your friends, but also of your enemies
"Cultivate truth, good faith, experience, cleverness, sociability, and industry.
Do not say beforehand what you are going to do; for if you fail, you will be laughed at.