[Bacteria are the] dark matter of the biological world [with 4 million mostly unknown species in a ton of soil].

It may be argued that to know one kind of beetle is to know them all. But a species is not like a molecule in a cloud of molecules-it is a unique population.

Well, let me tell you, ants are the dominant insects. They make up as much as a quarter of the biomass of all insects in the world. They are the principal predators. They're the cemetery workers.

'The Creation' presents an argument for saving biological diversity on Earth. Most of the book is for as broad an audience as possible.

The human mind evolved to believe in the gods. It did not evolve to believe in biology.

The essence of humanity's spiritual dilemma is that we evolved genetically to accept one truth and discovered another. Is there a way to erase the dilemma, to resolve the contradictions between the transcendentalist and the empiricist world views?

The two major challenges for the 21st century are to improve the economic situation of the majority and save as much of the planet as we can.