The city is not a concrete jungle, it is a human zoo.

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 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.

Artists like cats; soldiers like dogs.

We read off the many signals that our companions' clothes transmit to us in every social encounter. In this way, clothing is as much a part of human body language as gestures, facial expressions and postures.Even those people who insist that they despise attention to clothing, and dress as casually as possible, are making quite specific comments on their social roles and their attitudes towards the culture in which they live.

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.

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.