Science, like art, religion, commerce, warfare, and even sleep, is based on presuppositions.

Desired substance, things, patterns, or sequences of experience that are in some sense "good" for the organism - items of diet, conditions of life, temperature, entertainment, sex, and so forth - are never such that more of the something is always better than less of the something. Rather, for all objects and experiences, there is a quantity that has optimum value. Above that quantity, the variable becomes toxic. To fall below that value is to be deprived.

Evolution has long been badly taught. In particular, students - and even professional biologists - acquire theories of evolution without any deep understanding of what problem these theories attempt to solve. They learn but little of the evolution of evolutionary theory.

Whatever the ups and downs of detail within our limited experience, the larger whole is primarily beautiful.

Logic can often be reversed, but the effect does not precede the cause.

People are going to have to make themselves predictable, or the machines will get angry and kill them.

Every move we make in fear of the next war in fact hastens it.