Structural insight

Tempora mutantur, nos et mutamur in illis. (Times change, and we change with them.) — Latin Adage , 16t‍h-century Germany. I want to u...

a very great deal more truth can become known than can be proven. — Richard Feynman , "The Development of the Space-Time View of Quan...

This is not at all what I had in mind. — Albert Einstein, in response to David Bohm's hidden variable theory. A no-go theorem is a ...