Louis Pasteur

In the fields of observation chance favors only the prepared mind.

A bottle of wine contains more philosophy than all the books in the world.

I have been for the past three years studying a disease which is called hydrophobia, or rabies. It is a disease which I believe to be caused by a microbe.

Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world. Science is the highest embodiment of the patriotism of nations.

Life is a germ, and a germ is life. The living organism is the highest, the most complicated, and the most beautiful of all chemical machines.

To him who devotes his life to science, nothing can be more important than the study of its history.

I am utterly convinced that there is a germ for every disease.

Happy is the man who has a vocation which he can follow with passion.

The scientific method is the only one that allows us to approach the truth.

When I approach a child, he inspires in me two sentiments: tenderness for what he is, and respect for what he may become.

Do not let yourself be discouraged by the difficulties of research, and do not be afraid of a little suffering, for it is in this way that the truth will be revealed.

The true character of a man is revealed in his actions, not in his words.

One must make sure that one has good tools, and then one must use them well.

Without laboratories, men of science are soldiers without arms.

I am convinced that I have found the cause of fermentation.

The world is full of wonders, but they are only visible to the eyes that know how to see them.

The greatest discovery of my life has been finding God.

I only ask of you to look at things as I do.

There are no such things as applied sciences, only applications of science.

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