Sex (n.) is the life urge and involves all physical pleasures arising from any of the organs or any of the functions.
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Sex (n.) fades for psychology into the contrast between activity and passivity — which we too readily equate with male and female.
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Sex (n.) as a duality, male and female, is an ultimate biological fact that defies every attempt to trace it back to something else.
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Sex (n.) needs a place in public opinion where it can be discussed without the speaker being branded a trouble-maker.
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Sex (n.) is three things that vary independently: the body, the mental attitude, and the choice of whom to love.
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