One may say the eternal mystery of the world is its comprehensibility.
One strength of the communist system of the East is that it has some of the character of a religion and inspires the emotions of a religion.
Nothing is more destructive of respect for the government and the law of the land than passing laws which cannot be enforced.
No amount of experimentation can ever prove me right; a single experiment can prove me wrong.
No problem can be solved from the same level of consciousness that created it.
Not everything that can be counted counts, and not everything that counts can be counted.
My religion consists of a humble admiration of the illimitable superior spirit who reveals himself in the slight details we are able to perceive with our frail and feeble mind.
Nationalism is an infantile disease. It is the measles of mankind.
Never do anything against conscience even if the state demands it.
Never lose a holy curiosity.
Memory is deceptive because it is colored by today’s events.
Morality is of the highest importance – but for us, not for God.
Most of the fundamental ideas of science are essentially simple, and may, as a rule, be expressed in a language comprehensible to everyone.
Most people say that is it is the intellect which makes a great scientist. They are wrong: it is character.
Logic will get you from A to B. Imagination will take you everywhere.
Look deep into nature, and then you will understand everything better.
Love is a better teacher than duty.
Make everything as simple as possible, but not simpler.
Joy in looking and comprehending is nature’s most beautiful gift.
Knowledge of what is does not open the door directly to what should be.