Claude Bernard

Put off your imagination, as you put off your overcoat, when you enter the laboratory…

The investigator should have a robust faith – and yet not believe…

Art is I science is we…

It is what we know already that often prevents us from learning…

Mediocre men often have the most acquired knowledge…

In teaching man, experimental science results in lessening his pride more and more by proving…

Observation is a passive science, experimentation an active science…

Science does not permit exceptions…

Experimentation is an active science…