In matters of observation chance favors only the prepared mind. (not literal translation) - Dan's les champs de observation le hasard ne favorise que les esprits prepares.

There is no such thing as applied science, only the application of pure science.

If you suppress laboratories, physical science will be stricken with barrenness and death.

Worship the spirit of criticism.

One must not assume that an understanding of science is present in those who borrow the language

In the realm of scientific observation, luck is granted only to those who are prepared.

I give them experiments and they respond with speeches.

These are the living springs of great thoughts and great actions. Everything grows clear in the reflections from the Infinite.

Never will the doctrine of spontaneous generation recover from the mortal blow struck by this simple experiment.