The true sign of intelligence is not knowledge but imagination.
The unleashed power of the atom has changed everything save our modes of thinking and we thus drift toward unparalleled catastrophe.
The value of a man should be seen in what he gives and not in what he is able to receive.
The pursuit of truth and beauty is a sphere of activity in which we are permitted to remain children all our lives.
The release of atomic energy has not created a new problem. It has merely made more urgent the necessity of solving an existing one.
The road to perdition has ever been accompanied by lip service to an ideal.
The secret to creativity is knowing how to hide your sources.
The only reason for time is so that everything doesn’t happen at once.
The only source of knowledge is experience.
The only thing that interferes with my learning is my education.
The process of scientific discovery is, in effect, a continual flight from wonder.
The only real valuable thing is intuition.
The important thing is not to stop questioning. Curiosity has its own reason for existing.
The man of science is a poor philosopher.
The monotony and solitude of a quiet life stimulates the creative mind.
The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.
The most incomprehensible thing about the world is that it is comprehensible.
The gift of fantasy has meant more to me than my talent for absorbing positive knowledge.
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.
The hardest thing to understand in the world is the income tax.
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