A theory is something nobody believes, except the person who made it. An experiment is something everybody believes, except the person who made it.
Is it not better for a man to die for a cause in which he believes, such as peace, than to suffer for a cause in which he does not believe, such as war?
I believe in intuition and inspiration. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research.
It is every man’s obligation to put back into the world at least the equivalent of what he takes out of it.
Failure is success in progress.
A happy man is too satisfied with the present to dwell too much on the future.
In scientific thinking are always present elements of poetry. Science and music requires a thought homogeneous.
Those who have the privilege to know have the duty to act.
Something deeply hidden had to be behind things.
I prefer to make up my own quotes and attribute them to very smart people, so that I can use them to win arguments.
Keep fighting until the last buzzer sounds.
When you look at yourself from a universal standpoint, something inside always reminds or informs you that there are bigger and better things to worry about.
The man who regards his own life and that of his fellow-creatures as meaningless is not merely unfortunate but almost disqualified for life.
Creativity is the residue of time wasted.
Teaching should be such that what is offered is perceived as a valuable gift and not as a hard duty.
All meaningful and lasting change starts first in your imagination and then works its way out. Imagination is more important than knowledge.
Relativity applies to physics, not ethics.
Nothing that I can do will change the structure of the universe. But maybe, by raising my voice I can help the greatest of all causes – goodwill among men and peace on earth.
The led must not be compelled; they must be able to choose their own leader.
If I had an hour to solve a problem and my life depended on the solution, I would spend the first 55 minutes determining the proper question to ask, for once I know the proper question, I could solve the problem in less than five minutes.