“Without man and his potential for moral progress, the whole of reality would be a mere wilderness, a thing in vain, and have no final purpose.”

Man desires concord; but nature know better what is good for his species; she desires discord.

From the crooked timber of humanity, a straight board cannot be hewn.

Happiness is not an ideal of reason, but of imagination.

Never wish to see a just cause defended with unjust means.

A great part, perhaps the greatest part, of the business of our reason consists in the analysation of the conceptions which we already possess of objects.

How then is perfection to be sought? Wherein lies our hope? In education, and in nothing else.

By a lie a man throws away, and as it were, annihilates his dignity as a man.

The hand is the visible part of the brain.

Have the courage to use your own reason- That is the motto of enlightenment.

What can I know? What ought I to do? What can I hope?

Dignity is a value that creates irreplaceability.

Give me matter, and I will construct a world out of it!

Enlightenment is man’s emergence from his self-imposed immaturity. Immaturity is the inability to use one’s understanding without guidance from another.

The history of nature, begins with good, for it is God’s work; the history of freedom begins with badness, for it is man’s work.

Nothing is divine but what is agreeable to reason.

If the truth shall kill them, let them die.