Biological diversity is the key to the maintenance of the world as we know it... Eliminate one species, and another increases to take its place. Eliminate a great many species, and the local ecosystem starts to decay.

Not all ants use violence to dominate their world, some use more subtle methods.

Our brain is mapping the world. Often that map is distorted, but it's a map with constant immediate sensory input.

No species ... possesses a purpose beyond the imperatives created by genetic history ... The human mind is a device for survival and reproduction, and reason is just one of its various techniques.

We ought to recognize that religious strife is not the consequence of differences among people. It's about conflicts between creation stories.

In the process of natural selection, then, any device that can insert a higher proportion of certain genes into subsequent generations will come to characterize the species.

Each species is a masterpiece, a creation assembled with extreme care and genius.