Yes, we have to divide up our time like that, between our politics and our equations. But to me our equations are far more important, for politics are only a matter of present concern. A mathematical equation stands forever.
As far as the laws of mathematics refer to reality, they are not certain; and as far as they are certain, they do not refer to reality.
Science without religion is lame, religion without science is blind.
Everything that is really great and inspiring is created by the individual who can labor in freedom.
It is the duty of every citizen according to his best capacities to give validity to his convictions in political affairs.
Common sense is the collection of prejudices acquired by age eighteen.
Everything should be made as simple as possible, but not one bit simpler.
If the facts don't fit the theory, change the facts.
Insanity: doing the same thing over and over again and expecting different results.
Not everything that can be counted counts, and not everything that counts can be counted.
Reality is merely an illusion, albeit a very persistent one.
The hardest thing in the world to understand is the income tax.
The significant problems we have cannot be solved at the same level of thinking with which we created them.
Whoever undertakes to set himself up as a judge of Truth and Knowledge is shipwrecked by the laughter of the Gods.
You cannot simultaneously prevent and prepare for war.
At any rate, I am convinced that He [God] does not play dice.
Albert Einstein, In a letter to Max Born, 1926
If A is success in life, then A equals x plus y plus z. Work is x; y is play; and z is keeping your mouth shut.
Great spirits have always found violent opposition from mediocrities. The latter cannot understand it when a man does not thoughtlessly submit to hereditary prejudices, but honestly and courageously uses his intelligence and fulfills the duty to express the results of his thought in clear form.
The unleashed power of the atom has changed everything save our modes of thinking and we thus drift toward unparalleled catastrophe.
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.
You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there. The only difference is that there is no cat.
Albert Einstein, when asked to describe radio.