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1 " Homo sapiens is one of the few species on earth that care if they’re seen having sex. The impala is unconcerned. The dingo roundly flaunts it. A masturbating chimpanzee will stare straight at you. To any creature other than you and I and 6 billion other privacy-needing H. sapiens, sex is like peeling a mango or scratching your ear. It’s just something you do sometimes. "
― Mary Roach , Bonk: The Curious Coupling of Science and Sex
2 " What civilization is, is 6 billion people trying to make themselves happy by standing on each other's shoulders and kicking each other's teeth in. It's not a pleasant situation. "
― Terence McKenna
3 " Today we see a human population of over 6 billion people, many of whom have serious medical conditions, which either can't be treated or cannot be treated economically. "
