Lorraine Hansberry said this quote

Mama, you don’t understand. It’s all a matter of ideas, and God is just one idea I don’t acept. It’s not important. I am not going out and commit crimes or be immoral because I don’t believe in God. I don’t even think about it. It’s just that I get so tired of Him getting credit for all the things the human race achieves through its own stubborn effort. There simply is no God! There is only Man, and it’s he who makes miracles!