It is remarkable to what lengths people will go to avoid thought.

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.

To those searching for truth -- not the truth of dogma and darkness but the truth brought by reason, search, examination, and inquiry, discipline is required. For faith, as well intentioned as it may be, must be built on facts, not fiction -- faith in fiction is a damnable false hope.

Having a vision for what you want is not enough...Vision without execution is hallucination

Success is the product of the severest kind of mental and physical application.

Radio is just a fashion contrivance that will soon die out. It is obvious that there never will be invented a proper receiver!

The doctor of the future will give no medicine, but will involve the patient in the proper use of food, fresh air and exercise