Males do not represent two discrete populations, heterosexual and homosexual. The world is not to be divided into sheeps and goats. Not all things are black nor all things white.

Cheese crumbs spread before a pair of copulating rats will distract the female but not the male.

The heterosexuality or homosexuality of many individuals is not an all-or-none proposition.

Males do not represent two discrete populations, heterosexual and homosexual. The world is not to be divided into sheeps and goats. Not all things are black nor all things white.

Art alone develops weaklings, science alone, monsters. Somewhere, somehow, we must combine the two.

If biologists so often forget the most universal of all biologic principles [variation], it is not surprising that men and women in general expect their fellows to think and behave according to the pattern that may fit the law-maker, or the imaginary ideals for which the legislation was fashioned, but which are ill-shaped for all real individuals who try to live under them.

The history of medicine proves that in so far as man seeks to know himself and face his whole nature, he has become free from bewildered fear, despondent shame, or arrant hypocrisy. As long as sex is dealt with in the current confusion of ignorance and sophistication, denial and indulgence, suppression and stimulation, punishment and exploitation, secrecy and display, it will be associated with a duplicity and indecency that lead neither to intellectual honesty nor human dignity.