Never value anything as profitable to thyself which shall compel thee to break thy promise, to lose thy self-respect, to hate any man, to suspect, to curse, to act the hypocrite, to desire anything which needs walls and curtains.
If it is not right do not do it; if it is not true do not say it.
Both happiness and unhappiness depend on perception
Nothing that goes on in anyone else's mind can harm you.
If any man has done wrong, the harm is his own. But perhaps he has not done wrong.
This is moral perfection: to live each day as though it were the last; to be tranquil, sincere, yet not indifferent to one's fate.