Once you see your nature, sex is basically immaterial.

Human beings are accustomed to think of intellect as the power of having and controlling ideas and of ability to learn as synonymous with ability to have ideas. But learning by having ideas is really one of the rare and isolated events in nature.

We are a people that have always celebrated other people's success so long as we always had the opportunity to meet that success ourselves. That is the American nature. That is the American character. That is one of the things that makes us different from the rest of the world. And I'm afraid we could lose that or are on the verge of losing that.

It's not in our nature. Americans have never been a people that drive through a nice neighborhood and say, 'Oh, I hate the people who live in these nice houses.'

We all need to look into the dark side of our nature - that's where the energy is, the passion. People are afraid of that because it holds pieces of us we're busy denying.

Nature makes boys and girls lovely to look upon so they can be tolerated until they acquire some sense.

There is a great deal of human nature in man.

Loki in 'Thor' is the most incredible springboard into a sort of excavation of the darker aspects of human nature. So that was thrilling, coming back knowing that I'd built the boat and now I could set sail into choppier waters.

While day by day the overzealous student stores up facts for future use, he who has learned to trust nature finds need for ever fewer external directions. He will discard formula after formula, until he reaches the conclusion: Let nature take its course.

Nature's great masterpiece, an elephant the only harmless great thing.