Most of the fundamental ideas of science are essentially simple, and may, as a rule, be expressed in a language comprehensible to everyone.
The grand aim of all science is to cover the greatest number of empirical facts by logical deduction from the smallest number of hypotheses or axioms.
Science is a wonderful thing if one does not have to earn one's living at it.
No amount of experimentation can ever prove me right a single experiment can prove me wrong.
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.
Let every man be respected as an individual and no man idolized.
Everyone should be respected as an individual, but no one idolized.
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.
True religion is real living living with all one's soul, with all one's goodness and righteousness.
I am a deeply religious nonbeliever - this is a somewhat new kind of religion.
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.
Science without religion is lame, religion without science is blind.
The unleashed power of the atom has changed everything save our modes of thinking and we thus drift toward unparalleled catastrophe.
The attempt to combine wisdom and power has only rarely been successful and then only for a short while.
Politics is for the present, but an equation is for eternity.
Pure mathematics is, in its way, the poetry of logical ideas.
I am not only a pacifist but a militant pacifist. I am willing to fight for peace. Nothing will end war unless the people themselves refuse to go to war.
Peace cannot be kept by force it can only be achieved by understanding.
Heroism on command, senseless violence, and all the loathsome nonsense that goes by the name of patriotism - how passionately I hate them!
Nationalism is an infantile disease. It is the measles of mankind.