I think enormous harm is done by religion - not just in the name of religion, but actually by religion. ... Many people do simply awful things out of sincere religious belief, not using religion as a cover the way that Saddam Hussein may have done, but really because they believe that this is what God wants them to do, going all the way back to Abraham being willing to sacrifice Isaac because God told him to do that. Putting God ahead of humanity is a terrible thing.
Steven WeinbergHow strange it would be if the final theory were to be discovered in our lifetimes! The discovery of the final laws of nature will mark a discontinuity in human intellectual history, the sharpest that has occurred since the beginning of modern science in the seventeenth century. Can we now imagine what that would be like?
Steven Weinberg[C]reationists [and] other religious enthusiasts [are], in many parts of the world ..., the most dangerous adversaries of science.
Steven WeinbergIt is even harder to realize that this present universe has evolved from an unspeakably unfamiliar early condition, and faces a future extinction of endless cold or intolerable heat. The more the universe seems comprehensible, the more it seems pointless.
Steven WeinbergIf language is to be of any use to us, then we ought to try and preserve the meaning of words, and 'god' historically has not meant the laws of nature.
Steven Weinberg