Louis Pasteur

True friends have to get angry from time to time.

Always doubt yourself, until the data leaves no room for doubt.

Do not avoid your children the difficulties of life, rather teach them to overcome them.

Being surprised by something is the mind's first step toward discovery.

A little science keeps one away from God, but a lot of science brings one back to Him.

If I don't know something, I will investigate it.

Unfortunate are the men who have all the clear ideas.

Fortune favors a prepared mind.

Science is the soul of the prosperity of nations and the source of life for all progress.

Applied sciences do not exist, only the applications of science.