All human beings by nature desire to know.

The beginning is half of the whole.

Virtue lies in the middle.

Virtue is a kind of mean.

Man is by nature a political animal.

Virtue is sufficient for happiness.

-- Antisthenes

Custom, then, is the great guide of human life.

-- David Hume

One must imagine Sisyphus happy.

-- Albert Camus

To exist is to change, to change is to mature, to mature is to go on creating oneself endlessly.

-- Henri Bergson

Early to bed and early to rise, makes a man healthy, wealthy, and wise.

-- Benjamin Franklin

One is only happy in proportion as he makes others feel happy.

-- Milton S. Hershey