From a political point of view, there is but one principle, the sovereignty of man over himself. This sovereignty of myself over myself is called Liberty

Dying is nothing. What's terrible is not to live.

To love or have loved is all-sufficing. We must not ask for more. No other pearl is to be found in the shadowfolds of life. To love is an accomplishment.

When a woman is talking to you, listen to what she says with her eyes.

There is always more misery among the lower classes than there is humanity in the higher.

Superstition, bigotry and prejudice, ghosts though they are, cling tenaciously to life; they are shades armed with tooth and claw. They must be grappled with unceasingly, for it is a fateful part of human destiny that it is condemned to wage perpetual war against ghosts. A shade is not easily taken by the throat and destroyed.

In the relations of man with the animals, with the flowers, with all the objects of creation, there is a whole great ethic, scarcely perceived as yet, which will at length break through into the light, and which will be the corollary and the complement to human ethics.