Erwin Schrödinger said this quote

By the way, I never realized that to be nonbelieving, to be an atheist, was a thing to be proud of. It went without saying as it were....Our creed is indeed a queer creed. You others, Christians (and similar people), consider our ethics much inferior, indeed abominable. There is that little difference. We adhere to ours in practice, you don't.