The love of complexity without reductionism makes art; the love of complexity with reductionism makes science.

The closer the genetic relationship of the family members, as for example father-to-son, as opposed to uncle-to-nephew, the higher the degree of cooperation.

It's always been a great survival value for people to believe they belong to a superior tribe. That's just in human relationships.

If those committed to the quest fail, they will be forgiven. When lost, they will find another way. The moral imperative of humanism is the endeavor alone, whether successful or not, provided the effort is honorable and failure memorable.

People must belong to a tribe; they yearn to have a purpose larger than themselves. We are obligated by the deepest drives of the human spirit to make ourselves more than animated dust, and we must have a story to tell about where we came from, and why we are here.

If enough species are extinguished, will the ecosystems collapse, and will the extinction of most other species follow soon afterward? The only answer anyone can give is: possibly. By the time we find out, however, it might be too late. One planet, one experiment.

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