The Quotes canon
Sourced and curated.
Every quote has been curated by hand and carefully authenticated.
Browse all 10,075 quotes or apply filters in different categories to narrow your search.
Browse all 10,075 quotes or apply filters in different categories to narrow your search.
Werner Heisenberg2 quotes
Every tool carries with it the spirit by which it has been created. — Werner Heisenberg · 1958Since the measuring device has been constructed by the observer... We have to remember that what we observe is not nature in itself but nature exposed to our method of questioning. — Werner Heisenberg · 1956