I believe that the future of humanity is in the progress of reason through science. I believe that the pursuit of truth, through science, is the divine ideal which man should propose to himself.

If you ask me what I came into this life to do, I will tell you: I came to live out loud.

Man's highest duty is to protect animals from cruelty.

Nothing develops intelligence like travel.

Truth is on the march, and nothing will stop it.

The fate of animals is of greater importance to me than the fear of appearing ridiculous; it is indissolubly connected with the fate of men.

Did science promise happiness? I do not believe it. It promised truth, and the question is to know if we will ever make happiness with truth.

Governments are suspicious of literature because it is a force that eludes them.

If you shut up truth, and bury it underground, it will but grow.

The only basis for living is believing in life, loving it, and applying the whole force of one's intellect to know it better.

Respectable people... What bastards!

We are weary of being without gold in the midst of plenty. We wish to become men of means.

When something flipping out to the worse, don't feel bad. But be strong and make yourself hard so that the situations stop taking chance to hurt you.

Writing, for me, makes the world shiver and flame with meaning.

I would suggest that teachers show their students concrete examples of the negative effects of the actions that gangsta rappers glorify.

I think the lion, besides the elephant, was the one animal that I just started thinking about so much.

Don't look for things to be easier, look for you to be better

The only responsibility I feel is to deliver something that's new or at least to attempt that. The real responsibility is to entertain and to try and make people laugh.

Revolutions are celebrated when they are no longer dangerous.

In economics, you always want to ask 'And then what?'

Autumn, the year's last, loveliest smile.