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Albert Einstein

Albert Einstein
If you can't explain it simply, you don't understand it well enough.
I live in that solitude which is painful in youth, but delicious in the years of maturity.
He who joyfully marches to music in rank and file has already earned my contempt. He has been given a large brain by mistake, since for him the spinal cord would suffice.
Great spirits have always encountered violent opposition from mediocre minds.
Everything that can be counted does not necessarily count; everything that counts cannot necessarily be counted.
Do not worry about your difficulties in Mathematics. I can assure you mine are still greater.
Concern for man and his fate must always form the chief interest of all technical endeavors. Never forget this in the midst of your diagrams and equations.
As far as I'm concerned, I prefer silent vice to ostentatious virtue.
An empty stomach is not a good political adviser.
Any intelligent fool can make things bigger and more complex... It takes a touch of genius -- and a lot of courage to move in the opposite direction.
All that is valuable in human society depends upon the opportunity for development accorded the individual.
A man should look for what is, and not for what he thinks should be.
I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.
If I had only known, I would have been a locksmith.
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.
Common sense is the collection of prejudices acquired by age eighteen.
God does not care about our mathematical difficulties. He integrates empirically.
God may be subtle, but He isn't plain mean.
The only real valuable thing is intuition.
The most incomprehensible thing about the world is that it is comprehensible.