Common sense is the collection of prejudices acquired by age eighteen.
Too many of us look upon Americans as dollar chasers. This is a cruel libel, even if it is reiterated thoughtlessly by the Americans themselves.
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.
Technological progress is like an axe in the hands of a pathological criminal.
Education is a series of prejudices acquired by the age of eighteen.
If my theory of relativty is proven successful, Germany will claim me as a German and France will declare that I am a citizen of the world. Should my theory prove untrue, France will say I am a German and Germany will declare that I am a Jew.
Imagination is more important than knowledge.
I am enough of an artist to draw freely upon my imagination. Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world.
The important thing is not to stop questioning.
Great spirits have always encountered violent opposition from mediocre minds.
Gravity is not responsible for people falling in love.
Try not to become a man of success but rather try to become a man of value
If A equals success, then the formula is A equals X plus Y and Z, with X being work, Y play, and Z keeping your mouth shut.
The hardest thing in the world to understand is the income tax.