Keep well that is the half of wisdom and of happiness.

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!

Men don’t think, high and low-alike, they take what a woman does for them for granted.

As the Constitution endures, persons in every generation can invoke its principles in their own search for greater freedom.

You need to tell the truth to the audience, or they will throw a brick through the TV. They'll turn you off.

Every woman is just a different kind of problem.

Every stage of life has its own form of power, and we're always sort of terrified as to whether we can make the jump to the next form of power.

What, what am I to do with all of this life?

Endless is the search of truth.

Ideas and products and messages and behaviors spread just like viruses do.

I realize my arms aren't as toned as Halle Berry's but I don't want them to be.

Angels come in all sizes and shapes and colors, visible and invisible to the physical eye. But always you are changed from having seen one.