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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

An honest man, armed with all the knowledge available to us now, could only state that in some sense, the origin of life appears at the moment to be almost a miracle, so many are the conditions which would have had to have been satisfied to get it going.
FRANCIS CRICK

Honesty Knowledge Life Man Miracle Satisfaction State
The dangerous man is the one who has only one idea, because then he’ll fight and die for it.
FRANCIS CRICK

Dangerous Death Fight Himself Ideas Thinking
A theory should not attempt to explain all the facts, because some of the facts are wrong.
FRANCIS CRICK

Explanation Fact Theory Wrong
Free will is located in or near the anterior cingulate sulcus.
FRANCIS CRICK

Freedom Location
It has not escaped our notice that the specific pairing we have postulated immediately suggests a possible copying mechanism for the genetic material.
FRANCIS CRICK

Escape Eyes Notice Ourselves Possible Science
A good scientist values criticism almost higher than friendship: no, in science criticism is the height and measure of friendship.
FRANCIS CRICK

Criticism Friendship Goodness Measurement Science Value
How is the base sequence, divided into codons? There is nothing in the backbone of the nucleic acid, which is perfectly regular, to show us how to group the bases into codons.
FRANCIS CRICK

Division Group Science
It seems likely that most if not all the genetic information in any organism is carried by nucleic acid – usually by DNA, although certain small viruses use RNA as their genetic material.
FRANCIS CRICK

Biology Information Material Myself Science
I also suspect that many workers in this field [molecular biology] and related fields have been strongly motivated by the desire, rarely actually expressed, to refute vitalism.
FRANCIS CRICK

Expression Motivational Myself Strong Work
You can do reverse engineering, but you can’t do reverse hacking.
FRANCIS CRICK

Professional Technology Yourself
One of the most frightening things in the Western world, and in this country in particular, is the number of people who believe in things that are scientifically false. If someone tells me that the earth is less than 10,000 years old, in my opinion he should see a psychiatrist.
FRANCIS CRICK

Country Earth Myself Opinion People Scare World
For simplicity one can think of the + class as having one extra base at some point or other in the genetic message and the – class as having one too few.
FRANCIS CRICK

Oneself Simplicity Thinking
Avoid the temptation to work so hard that there is no time left for serious thinking.
FRANCIS CRICK

Avoid Serious Temptation Thinking Time
The balance of evidence both from the cell-free system and from the study of mutation, suggests that this does not occur at random, and that triplets coding the same amino acid may well be rather similar.
FRANCIS CRICK

Evidence Freedom Science System
Almost all aspects of life are engineered at the molecular level, and without understanding molecules we can only have a very sketchy understanding of life itself.
FRANCIS CRICK

Life Science Understand
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

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.

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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.

Related Topics

Popular Authors

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