The investigator should have a robust faith - and yet not believe.
Priestley [said] that each discovery we make shows us many others that should be made.
Feeling alone guides the mind.
Those who do not know the torment of the unknown cannot have the joy of discovery.
If I had to define life in a single phrase, I should clearly express my thought of throwing into relief one characteristic which, in my opinion, sharply differentiates biological science. I should say: life is creation.
Experiment is fundamentally only induced observation.