It is here.

"Some quantum cosmologists like to talk about a so-called anthropic principle that requires conditions in the universe to be compatible with the existence of human beings. A weak form of the principle states merely that the particular branch of history on which we find ourselves possesses the characteristics necessary for our planet to exist and for life, including human life, to flourish here. In that form, the antrhopic principle is obvious.

"Suppose the correct cosmology really involves a multiverse with a probabilistic distribution of universes displaying various solutions of the fundamental equations. Perhaps those who like to invoke an anthropic principle believe that the solution corresponding to our universe is an improbable one, while the more probable ones do not admit human life in any of their branching histories. But in that case we would still have to say that our universe must be compatible with the existence of everything observed, including human life, whether probable or not. Again, such a weak anthropic principle is a triviality."

- Murray Gell-Mann, "The Quark and the Jaguar"