As the French say, there are three sexes - men, women, and clergymen. Sydney Smith
Instead of this absurd division into sexes they ought to class people as static and dynamic. Evelyn Waugh
It would be futile to attempt to fit women into a masculine pattern of attitudes, skills and abilities and disastrous to force them to suppress their specifically female characteristics and abilities by keeping up the pretense that there are no differences between the sexes. Arianna Huffington
Women priests. Great, great. Now there's priests of both sexes I don't listen to. Bill Hicks
There is more difference within the sexes than between them. Ivy Compton-Burnett
No practical biologist interested in sexual reproduction would be led to work out the detailed consequences experienced by organisms having three or more sexes; yet what else should he do if he wishes to understand why the sexes are, in fact, always two? Ronald Fisher