To have a great idea, have a lot of them.

I am both pleased but astonished by the fact that mankind has not yet begun to use all the means and devices that are available for destruction. I hope that such weapons are never manufactured in quantity.

Interest is the invention of Satan.

Even though I am nearly deaf, I seem to be gifted with a kind of inner hearing which enables me to detect sounds and noises which the ordinary person does not hear.

Until man duplicates a blade of grass, nature can laugh at his so called scientific knowledge.

Failure is really a matter of conceit. People don't work hard because, in their conceit, they imagine they'll succeed without ever making an effort. Most people believe that they'll wake up some day and find themselves rich. Actually, they've got it half right, because eventually they do wake up.

The three great essentials to achieve anything worth while are: Hard work, Stick-to-itiveness, and Common sense.