But he admitted that he had been sexually abused at his prep school in Salisbury.
Dawkins told the audience how fagging, bullying, cold showers and bruises, which left their mark for three weeks, were common.
He also revealed that a master at the school once “put a hand down his shorts.”
“I got quite a bit of stick for saying that it did not have a big impact but to say that it did would be an indecency to those people whose lives have been ruined by experiences that have been much worse,” he said.
The author of The Selfish Gene and The God Delusion has previously said the had could not condemn the ‘mild paedophilia’ he experience as a boy.
Prof Dawkins, described how a master at his Salisbury prep school “pulled me on to his knee and put his hand inside my shorts”.
He wrote that the episode was “extremely disagreeable” and that other boys were molested by the same teacher, but concludes: “I don’t think he did any of us any lasting damage.”
However his comments were described as a ‘terrible slight’ by the NSPCC.