The inventor can't do it all, you've got to change people. We have an enormous capacity to invent super-machinery. But our desire to install the device is weak. Human inertia is the problem, not invention. Something in man makes him resist change.

You can't realize your dreams unless you have one to begin with.

Personally, I enjoy working about 18 hours a day. Besides the short catnaps I take each day, I average about four to five hours of sleep per night.

I never did a day's work in my life, it was all fun.

A man’s best friend is a good wife.

What a man's mind can create, man's character can control.

We shall have no better conditions in the future if we are satisfied with all those which we have at present.