Speak no ill of a friend, nor even of an enemy.
As quoted by Diogenes Laërtius, i. 78.
Whatever you do, do it well.Pittacus Of Mytilene
Power shows the man.Pittacus Of Mytilene
Do not say before hand what you are going to do; for if you fail, you will be laughed at.Pittacus Of Mytilene
Do not reproach a man with his misfortunes, fearing lest Nemesis may overtake you.Pittacus Of Mytilene
Cultivate truth, good faith, experience, cleverness, sociability, and industry.Pittacus Of Mytilene
Know thine opportunity.Pittacus Of Mytilene
Speak no ill of a friend, nor even of an enemy.Pittacus Of Mytilene