Color exists by convention, sweet by convention, bitter by convention; in reality there are only atoms and void.

Tranquility arises for human beings from moderation in enjoyment and a balanced life.

He who would be tranquil should not undertake too many things, either private or public.

For those who want more, time is never enough.

Act as if what you do makes a difference. It does.

-- William James

It is not I who conform to the stars; the stars conform to me.

-- Plotinus

Waste no more time arguing about what a good man should be. Be one.

-- Marcus Aurelius

Fate is a natural order of all things, following one upon another from eternity, and their intertwining is inviolable.

-- Chrysippus of Soli

Fearlessness is not the absence of fear. It's the mastery of fear.

-- Arianna Huffington

If you think you're too small to have an impact, try going to bed with a mosquito.

-- Anita Roddick