Colonies with lower relatedness among the workers often have higher growth and reproduction rates than those with higher relatedness,

Human beings live -- literally live, as if life is equated with the mind -- by symbols, particularly words, because the brain is constructed to process information almost exclusively in their terms.

Human activity equals a decline of the rest of life on earth,

I am an optimist by nature. But I have to admit, it's getting kind of scary.

For every person in the world to reach the present U.S. level of consumption with existing technology would require four more planet earths.

Earth is a little-known planet. We have little appreciation for what we're doing. ... We are flying blind,

The organism is only DNA's way of making more DNA.

Without a trace of irony I can say I have been blessed with brilliant enemies . . . I owe them a great debt, because they redoubled my energies and drove me in new directions.

We propose this with great caution, ... The evidence, after all, only applies strongly to insects. Human altruism and tight-knit societies may well have evolved differently. But if it is true, it would help us understand the group aggression and warfare so widespread today. Those who study human biology and behavior should take a new look at this possibility.

Most children have a bug period, and I never grew out of mine.