If we're there, people will act differently; it's human nature.

It's human nature to expect that the people that will respond early and faster will be the people that will more than likely be coming back. And we recognize that we haven't reached everyone but we reached enough people that we feel like the numbers are valid.

It is human nature to think wisely and act in an absurd fashion.

In the general course of human nature, A power over a man's subsistence amounts to a power over his will.

If the Martians can translate this and interpret it, it will give them an interesting view of human nature.

It's human nature to be curious about people, and to be more curious about young people than old people. We want to cheer something on at the same time we want to tear it down. That's just so normal.