“Understanding human nature must be the basis of any real improvement in human life. Science has done wonders in mastering the laws of the physical world, but our own nature is much less understood, as yet, than the nature of stars and electrons. When science learns to understand human nature, it will be able to bring a happiness into our lives which machines and the physical sciences have failed to create.”

“Science embodies the human desire to understand nature; technology couples that desire with the ambition to control nature.”

“Nothing is so dangerous to the progress of the human mind than to assume that our views of science are ultimate, that there are no mysteries in nature, that our triumphs are complete and that there are no new worlds to conquer.”

“If there is something in nature you don't understand, odds are it makes sense in a deeper way that is beyond your understanding. So there is a logic to natural things that is much superior to our own. Just as there is a dichotomy in law: 'innocent until proven guilty' as opposed to 'guilty until proven innocent', let me express my rule as follows: what Mother Nature does is rigorous until proven otherwise; what humans and science do is flawed until proven otherwise.”

“That so many manage to accommodate belief systems encompassing both the natural and the supernatural is a testament not to the compatibility of science and religion but to the flexibility, in both the physical and metaphysical senses, of the human brain.”

“Jesus Christ, with His divine understanding of every understanding of our human nature, understood that not all men were called to the religious life, that by far the vast majority were forced to live in the world, and, to a certain extent, for the world.”