“ An expert is someone who knows some of the worst mistakes that can be made in his subject, and how to avoid them. ”

— Werner Heisenberg

“ What we observe is not nature itself, but nature exposed to our method of questioning. ”

— Werner Heisenberg

“ Ce que nous observons, ce n'est pas la Nature en soi, mais la Nature exposée à notre méthode d'investigation. ”

— Werner Heisenberg