Evolutionarily speaking, there is seldom any mystery in why we seek the goals we seek — why, for example, people would rather make love with an attractive partner than get a slap on the belly with a wet fish.
Steven PinkerSome people think that evolutionary psychology claims to have discovered that human nature is selfish and wicked. But they are flattering the researchers and anyone who would claim to have discovered the opposite. No one needs a scientist to measure whether humans are prone to knavery. The question has been answered in the history books, the newspapers, the ethnographic record, and the letters to Ann Landers. But people treat it like an open question, as if someday science might discover that it's all a bad dream and we will wake up to find that it is human nature to love one another.
Steven PinkerI don't think aggression works like thirst or sleep. I think aggression is more elicited by particular situations. I think it can be mitigated.
Steven PinkerIt's likely that taboo words are stored in the right hemisphere of the brain. Massive left hemisphere strokes or the entire surgical removal of the left hemisphere can leave people with no articulate speech other than the ability to swear, spout cliches and song lyrics.
Steven Pinker