The evidence of prehistoric remnants combined with comparative data from living carnivores and other living primates has given us a picture of how th… - Desmond Morris

I discovered long ago that, if you write a book about cats or dogs, everybody loves you, but if you dare to write a book about human beings, all hell breaks loose. It is impossible to write an uncensored, honest book about human behaviour without offending at least part of your audience. If you feel you have a basic truth to tell, then you must tell it and be prepared to suffer the inevitable criticisms.

The most successful behaviour-liars are those who, instead of consciously concentrating on modifying specific signals, think themselves into the basic mood they wish to convey and then let the small details take care of themselves. This method is frequently used with great success by professional liars, such as actors and actresses. Their entire working lives are spent performing behavioural lies, a process which can sometimes be extremely damaging to their private lives. Politicians and diplomats are also required to perform an undue amount of behavioural lying, but unlike the actors they are not socially ‘licensed to lie’, and the resultant guilt feelings tend to interfere with their performances. Also, unlike the actors, they do not undergo prolonged training courses.

It could be said that the advance of civilization has not so much moulded modern sexual behaviour, as that sexual behaviour has moulded the shape of civilization.