154 Quotes by Louis Pasteur

Do not promote what you can't explain, simplify, and prove early.

There does not exist a category of science to which one can give the name applied science. There are science and the applications of science, bound together as the fruit of the tree which bears it.

Live in the serene peace of laboratories and libraries

Science is the highest personification of the nation because that nation will remain the first which carries the furthest the works of thought and intelligence.

The greatest malfunction of spirit is to believe things.

Let me tell you the secret that has led me to my goal. My strength lies solely in my tenacity.

To demonstrate experimentally that a microscopic organism actually is the cause of a disease and the agent of contagion, I know no other way, in the present state of Science, than to subject the microbe (the new and happy term introduced by M. Sédillot) to the method of cultivation out of the body.

The universe is asymmetric and I am persuaded that life, as it is known to us, is a direct result of the asymmetry of the universe or of its indirect consequences. The universe is asymmetric. Acknowledging the role of molecules that have stereoisomers, some the mirror image of the others, and microorganisms whose chemistry prefers only one of those forms.

La fortuna juega a favor de una mente preparada