The greatest challenge facing mankind is the challenge of distinguishing reality from fantasy, truth from propaganda.

The rock, for its part, is not even aware of our existence because we are alive for only a brief instant of its lifespan. To it, we are like flashes in the dark.

Friendships are nice. So is competence.

You are the reason why he exists on this earth. You don't have the right to abandon him just because he's inconvenient or has trouble in school.

They don't have intelligence. They have what I call 'thintelligence.' They see the immediate situation. They think narrowly and they call it 'being focused.' They don't see the surround. They don't see the consequences.

The greatest challenge facing mankind is the challenge of distinguishing reality from fantasy, truth from propaganda.

We need to get environmentalism out of the sphere of religion. We need to stop the mythic fantasies, and we need to stop the doomsday predictions. We need to start doing hard science instead.