Pythagoras of Samos (Ancient Greek: Πυθαγόρας ὁ Σάμιος, romanized: Pythagóras ho Sámios, lit. 'Pythagoras the Samian', or simply Πυθαγόρας; Πυθαγόρης in Ionian Greek; c. 570 – c. 495 BC) was an ancient Ionian Greek philosopher, polymath and the eponymous founder of Pythagoreanism. His political and religious teachings were well known...
Rest satisfied with doing well, and leave others to talk of you as they please.
Do not fight verbosity with words: speech is given to all, intelligence to few.
Readiness of speech is often inability to hold the tongue.