Although I came to doubt all revelation, I can never accept the idea that the Universe is a physical or chemical accident, a result of blind evolution. Even though I learned to recognize the lies, the clichés and the idolatries of the human mind, I still cling to some truths which I think all of us might accept some day. There must be a way for man to attain all possible pleasures, all the powers and knowledge that nature can grant him, and still serve God — a God who speaks in deeds, not in words, and whose vocabulary is the Cosmos.

Nobel lecture (1978)