In the fourth century BC, Aristotle said that some homoerotic desires come from habit, but others spring from nature.8 In other words, some people are born with same-sex desires.9 Another ancient writer argued that some men desire to play the passive role in same-sex intercourse because of a biological defect. His theory was absurd and medically invalid.10 But the point is, he believed that a particular form of same-sex erotic desire was biological and inborn.11
