Altruism is a brief phase through which some adolescents must pass. It is rather like acne. Happily, as with acne, only a few are permanently scarred.
Gore VidalFrom the age of 1 to 6 there is a small percentage that is exclusively homosexual, a small percentage heterosexual and there's a wide band in the middle of people who respond to various stimuli. A little bit here, a little more there.
Gore Vidal