Know thine opportunity.
Attributed. Quoted in Chambers Biographical Dictionary (5th edn,1990).
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