Try and penetrate with our limited means the secrets of nature and you will find that, behind all the descernible laws and connections, there remains something subtle, intangible and inexplicable. Veneration for this force beyond anything that we can comprehend is my religion. To that extent I am, in fact, religious.

Everything should be made as simple as possible ... But not simpler.

The whole of science is nothing more than a refinement of everyday thinking.

An empty stomach is not a good political adviser.

The devil has put a penalty on all things we enjoy in life. Either we suffer in health or we suffer in soul or we get fat.

The world is a dangerous place to live, not because of the people who are evil, but because of the people who don't do anything about it.