What would be ugly in a garden constitutes beauty in a mountain.

The soul has illusions as the bird has wings: it is supported by them.

Revolutions are not born of chance but of necessity.

What is called honors and dignities, and even honor and dignity, is generally fool's gold.

In saying no to progress, it is not the future which they condemn, but themselves. They give themselves a melancholy disease; they inoculate themselves with the past. There is but one way of refusing tomorrow, that is to die.

Change your opinions, keep to your principles; change your leaves, keep intact your roots.

To crush out fanaticism and revere the infinite, such is the law. Let us not confine ourselves to falling prostrate beneath the tree of creation and contemplating its vast ramifications full of stars. We have a duty to perform, to cultivate the human soul, to defend mystery against miracle, to adore the incomprehensible and to reject the absurd; to admit nothing that is inexplicable excepting what is necessary, to purify faith and obliterate superstition from the face of religion, to remove the vermin from the garden of God.