“Out of the crooked timber of humanity, no straight thing was ever made.”

Man must be disciplined, for he is by nature raw and wild.

Treat people as an end, and never as a means to an end.

Experience without theory is blind, but theory without experience is mere intellectual play.

What might be said of things in themselves, separated from all relationship to our senses, remains for us absolutely unknown.

We are enriched not by what we possess, but by what we can do without.

For peace to reign on Earth, humans must evolve into new beings who have learned to see the whole first.

Freedom is the opposite of necessity.

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.

Give me matter and I will build a world out of it.

The possession of power inevitably spoils the free use of reason.

Enlightenment is man’s emergence from his self-incurred immaturity.

Heaven has given human beings three things to balance the odds of life: hope, sleep, and laughter.

Thoughts without content are empty, intuitions without concepts are blind.

The cultivation of reason leads humanity sooner to misery than happiness.

Have patience awhile; slanders are not long-lived. Truth is the child of time; erelong she shall appear to vindicate thee.

Innocence is a splendid thing, only it has the misfortune not to keep very well and to be easily misled.

Humanity is the higher meaning of our planet, the nerve that connects this part of it with the upper world, the eye it raises to heaven.

Humanity is a comic role.

At the very beginning of my creative life I loved humanity. I wanted to do something good for mankind. Soon I understood that it isn’t possible to save mankind.

Passion is universal humanity. Without it religion, history, romance and art would be useless.

The Freudian theory is one of the most important foundation stones for an edifice to be built by future generations, the dwelling of a freer and wiser humanity.

The spirit of Revolution should always permeate the soul of humanity, so that the reactionary forces may not accumulate to check its eternal onward march.

It is time for humanity to reset our spiritual compass from self-centeredness to other-centeredness.

Violence diminishes our humanity.