43. Author Dan Brown: “Overpopulation is an issue so profound that all of us need to ask what should be done.”

44. Prince Phillip, husband of Queen Elizabeth II and co-founder of the World Wildlife Fund: “In the event that I am reincarnated, I would like to return as a deadly virus, in order to contribute something to solve overpopulation.”

45. Ashley Judd: “It’s unconscionable to breed, with the number of children who are starving to death in impoverished countries.”

46. Charles Darwin: “With savages, the weak in body or mind are soon eliminated; and those that survive commonly exhibit a vigorous state of health. We civilised men, on the other hand, do our utmost to check the process of elimination; we build asylums for the imbecile, the maimed, and the sick; we institute poor-laws; and our medical men exert their utmost skill to save the life of every one to the last moment. There is reason to believe that vaccination has preserved thousands, who from a weak constitution would formerly have succumbed to small-pox. Thus the weak members of civilised societies propagate their kind. No one who has attended to the breeding of domestic animals will doubt that this must be highly injurious to the race of man. It is surprising how soon a want of care, or care wrongly directed, leads to the degeneration of a domestic race; but excepting in the case of man himself, hardly any one is so ignorant as to allow his worst animals to breed.”