Are not men and women obviously different?

“Oh,” she said. She looked at me. “But are not men and women obviously different?” she asked.
“Statistically, of course,” I said, “there are vast and obvious differences between them, both psychological and physical, but some men can be found who are very feminine and some women can be found who are extremely masculine. Thus, the existence of such feminine men and such masculine women proves that men and women are really the same.”

Fighting Slave of Gor, p.169