This unusual and highly successful species spends a great deal of time examining his higher motives and an equal amount of time ignoring his fundamental ones.

Sexual behavior in our species goes through three characteristic phases: pair formation, precopulatory activity, and copulation, usually but not always in that order. The pair-formation stage, usually referred to as courtship, is remarkably prolonged by animal standards.

I viewed my fellow man not as a fallen angel, but as a risen ape.

I think like the species I am studying, whatever it is. If I am watching a lizard, I become the lizard. Gazing ath the water at a pike, I become the pike.

We never stop investigating. We are never satisfied that we know enough to get by. Every question we answer leads on to another question. This has become the greatest survival trick of our species.

Life is like a very short visit to a toy shop between birth and death.

Monks, nuns, long-term spinsters and bachelors and permanent homosexuals are all, in a reproductive sense, aberrant. Society has bred them, but they have failed to return the compliment.