I have spoken to Einstein and he admitted to me that his theory was in fact no different from the one of Parmenides.

Our belief in any particular natural law cannot have a safer basis than our unsuccessful critical attempts to refute it.

The conspiracy theory of society... comes from abandoning god and then asking: "Who is in his place"

Simple statements are to be prized more highly than less simple ones because they tell us more; because their empirical content is greater; and because they are better testable.

No particular theory may ever be regarded as absolutely certain.... No scientific theory is sacrosanct.

There will be well-testable theories, hardly testable theories, and non-testable theories. Those which are non-testable are of no interest to empirical scientists. They may be described as metaphysical.

I am opposed to looking upon logic as a kind of game. ... One might think that it is a matter of choice or convention which logic one adopts. I disagree with this view.