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A theory should not attempt to explain all the facts, because some of the facts are wrong.

Francis Crick

It is essential to understand our brains in some detail if we are to assess correctly our place in this vast and complicated universe we see all around us.
FRANCIS CRICK

Brain Complication Detail Essential Place See Understand Universe
It is notoriously difficult to define the word living.
FRANCIS CRICK

Difficult Live World
In my experience most mathematicians are intellectually lazy.
FRANCIS CRICK

Experience Intellectual Mathematics
A comparison between the triplets tentatively deduced by these methods with the changes in amino acid sequence produced by mutation shows a fair measure of agreement.
FRANCIS CRICK

Agreement Comparison Measurement Production
In my experience most mathematicians are intellectually lazy and especially dislike reading experimental papers. He seemed to have very strong biological intuitions but unfortunately of negative sign.
FRANCIS CRICK

Biology Experience Experiment Intellectual Mathematics Negative Reading Strong
Trying to determine the structure of a protein by UV spectroscopy was like trying to determine the structure of a piano by listening to the sound it made while being dropped down a flight of stairs.
FRANCIS CRICK

Determination Listen Sound Structure Try
A knowledge of the true age of the Earth and of the fossil record makes it impossible for any balanced intellect to believe in the literal truth of every part of the Bible in the way that fundamentalists do.
FRANCIS CRICK

Age Balance Earth Fundamental Impossible Intellectual Knowledge Record True
We are sometimes asked what the result would be if we put four +’s in one gene. To answer this my colleagues have recently put together not merely four but six +’s.
FRANCIS CRICK

Experiment Myself Result Science Team Work
It is not easy to convey, unless one has experienced it, the dramatic feeling of sudden enlightenment that floods the mind when the right idea finally clinches into place.
FRANCIS CRICK

Drama Easy Enlightenment Experience Feeling Place
It now seems very likely that many of the 64 triplets, possibly most of them, may code one amino acid or another, and that in general several distinct triplets may code one amino acid.
FRANCIS CRICK

Biology Born Possible Reproduction Science
A final proof of our ideas can only be obtained by detailed studies on the alterations produced in the amino acid sequence of a protein by mutations of the type discussed here.
FRANCIS CRICK

Detail Evidence Ideas Ourselves Science Type
We have to take away from humans in the long run their reproductive autonomy as the only way to guarantee the advancement of mankind.
FRANCIS CRICK

Human Kind Man Reproduction Run
Anybody who believes that the earth is less than 10,000 years old needs psychiatric help.
FRANCIS CRICK

Believe Earth Help Need. Mental Old
The ultimate aim of the modern movement in biology is in fact to explain all biology in terms of physics and chemistry.
FRANCIS CRICK

Biology Chemistry Explanation Fact Modern Movement
God is a hacker, not an engineer.
FRANCIS CRICK

God One Liner Science
A theory should not attempt to explain all the facts, because some of the facts are wrong.
FRANCIS CRICK

Explanation Fact Theory Wrong

A theory should not attempt to explain all the facts, because some of the facts are wrong.

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A theory should not attempt to explain all the facts, because some of the facts are wrong.

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More Francis Crick Quotes