Albert Einstein  14 March 1879 – 18 April 1955) was a German-born theoretical physicist who developed the general theory of relativity , one of the two pillars of modern physics (alongside quantum mechanics ). While best known for his mass–energy equivalence formula E = mc2 (which has been dubbed "the world's most famous equation"), he received the 1921 Nobel Prize in Physics "for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect ". The latter was pivotal in establishing quantum theory .

"Blind belief in authority is the greatest enemy of truth".

The only reason for time is so that everything doesn't happen at once.
                               
A person who never made a mistake never tried anything new.

The only source of knowledge is experience.

When you are courting a nice girl, an hour seems like a second.  When you sit on a red-hot cinder, a second seems like an hour.  That's relativity.

Learn from yesterday, live for today, hope for tomorrow.  The important thing is to not stop questioning.

The world is a dangerous place to live, not because of the people who are evil, but because of the people who don't do anything about it.

The true sign of intelligence is not knowledge but imagination.

Imagination is more important than knowledge.  Information is not knowledge.

Logic will get you from A to B.  Imagination will take you everywhere.

Only two things are infinite:  the universe and human stupidity, and I'm nore sure about the former.

The difference between stupidity and genius is that genius has its limits.

If you can't explain it simply, you don't understand it well enough.

It's not that I'm so smart, it's just that I stay with problems longer.

I have no special talent.  I am only passionately curious.

Try not to become a man of success, but rather try to become a man of value.

Common sense is the collection of prejudices acquired by age eighteen.

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.

Everyone should be respected as an individual, but no one idolized.