Experimentation is an active science. – Claude Bernard
Observation is a passive science, experimentation an active science. – Claude Bernard

Experimentation is an active science. – Claude Bernard
Observation is a passive science, experimentation an active science. – Claude Bernard
A fact in itself is nothing. It is valuable only for the idea attached to it, or for the proof which it furnishes. – Claude Bernard
Things happen too quickly, crisis follows crisis, the soil of our minds is perpetually disturbed. Each of us, to relieve his feelings, broadcasts his own running commentary on the preposterous and bewildering events of the hour: and this, nowadays, is what passes for conversation. – Jan Struther, Mrs. Miniver, 1930s