Desmond Morris

"There have been many arguments about the location of the immortal human soul. Could it be in the heart, in the head, or perhaps diffused throughout the whole body -- an all-pervading spiritual quality unique to the human being? The answer, it seems to me as a zoologist, is obvious enough: a man's soul is located in his testicles; a woman's in her ovaries. For it is here that we find the truly immortal elements in our constitution-our genes." -- The Human Animal (1994)

Two quotes from his 1967 book The Naked Ape:

"[Religion] has lead to a number of bizzare by-products, such as a belief in 'another life' where we will at last meet up with the god figures."

"In a sense, we still believe in an after-life, because part of the reward obtained from our creative works is the feeling that, through them, we will 'live on' after we are dead."