Enrico Fermi

Physics Italian-American 1901 – 1954 565 quotes

Created first nuclear reactor, contributed to quantum theory

Most quoted

"A human being is a part of a whole, called by us universe, a part limited in time and space. He experiences himself, his thoughts and feelings as something separated from the rest... a kind of optical delusion of his consciousness. This delusion is a kind of prison for us, restricting us to our personal desires and to affection for a few persons nearest to us. Our task must be to free ourselves from this prison by widening our circle of compassion to embrace all living creatures and the whole of nature in its beauty."

— from Attributed

"The important thing is not to stop questioning. Curiosity has its own reason for existence. One cannot help but be in awe when he contemplates the mysteries of eternity, of life, of the marvelous structure of reality. It is enough if one tries merely to comprehend a little of this mystery each day."

— from Attributed

"Before we knew anything about the structure of the nucleus, we knew that it was very small. And we knew that it was very heavy. And we knew that it was very stable. And we knew that it was very energetic. And we knew that it was very mysterious."

— from Attributed

All quotes by Enrico Fermi (565)

The true sign of intelligence is not knowledge but imagination.

Attributed, often quoted (similar to Einstein)

The only source of knowledge is experience.

Attributed, often quoted (similar to Einstein)

The value of a man should be seen in what he gives and not in what he is able to receive.

Attributed, often quoted (similar to Einstein)

Peace cannot be kept by force; it can only be achieved by understanding.

Attributed, often quoted (similar to Einstein)

The most incomprehensible thing about the world is that it is comprehensible.

Attributed, often quoted (similar to Einstein)

A person who never made a mistake never tried anything new.

Attributed, often quoted (similar to Einstein)

The only way to escape the corruptible effect of praise is to go on working.

Attributed, often quoted

It is a miracle that curiosity survives formal education.

Attributed, often quoted (similar to Einstein)

The only thing that interferes with my learning is my education.

Attributed, often quoted (similar to Einstein)

I am working on a problem that is very interesting and I hope to have some results soon.

Letter to a colleague

The work here is progressing well, and I am quite satisfied with the results.

Letter to a colleague

I am very happy with my life here in America. The opportunities are immense.

Letter to family

The atomic bomb is a terrible weapon, but it was necessary to end the war.

Letter to a friend 1945

I believe that science should be used for the good of humanity, not for destruction.

Diary entry

The future of physics is bright, and I am excited to see what new discoveries will be made.

Letter to a student

My dear Laura, I miss you terribly and wish you were here with me.

Letter to Laura Fermi

The work on the reactor is going well, and we are making good progress.

Letter to a colleague 1942

I am always looking for new challenges and new problems to solve.

Diary entry

The beauty of physics lies in its ability to explain the universe around us.

Letter to a student

I am deeply concerned about the political situation in Europe.

Letter to a friend