The genes are the master programmers, and they are programming for their lives. - Richard Dawkins

I am often accused of expressing contempt and despising religious people. I don't despise religious people, I despise what they stand for. I like to quote the British journalist Johann Hari who said, "I have so much respect for you, that I cannot respect your ridiculous ideas."

If a curiously selective plague came along and killed all people of intermediate height, 'tall' and 'short' would come to have just as precise a meaning as 'bird' or 'mammal'. The same is true of human ethics and law. Our legal and moral systems are deeply species-bound. The director of a zoo is legally entitled to 'put down' a chimpanzee that is surplus to requirements, while any suggestion that he might 'put down' a redundant keeper or ticket-seller would be greeted with howls of incredulous outrage. The chimpanzee is the property of the zoo. Humans are nowadays not supposed to be anybody's property, yet the rationale for discriminating against chimpanzees in this way is seldom spelled out, and I doubt if there is a defensible rationale at all. Such is the breathtaking speciesism of our attitudes, the abortion of a single human zygote can arouse more moral solicitude and righteous indignation than the vivisection of any number of intelligent adult chimpanzees! [T]he only reason we can be comfortable with such a double standard is that the intermediates between humans and chimps are all dead.

More poignant for us, at Laetoli in Tanzania are the companionable footprints of three real hominids, probably Australopithecus afarensis, walking together 3.6 million years ago in what was then fresh volcanic ash. Who does not wonder what these individuals were to each other, whether they held hands or even talked, and what forgotten errand they shared in a Pliocene dawn?