"My brain is only a receiver, in the Universe there is a core from which we obtain knowledge, strength and inspiration. I have not penetrated into the secrets of this core, but I know that it exists."

"Our virtues and our failings are inseparable, like force and matter. When they separate, man is no more."

"We must all have some ideal which will govern our behaviour and satisfy us, but it is not material. It can be religion, art, science, whatever, it is only important that it acts as a non-material forc…"

"I myself eschew all stimulants. I also practically abstain from meat."

"That is the trouble with many inventors; they lack patience. They lack the willingness to work a thing out slowly and clearly and sharply in their mind, so that they can actually 'feel it work.' They …"