Bohr believed that whenever we encountered a paradox, it was a sign that we were hitting on something true and real. This was because of the fundamental disconnect between reality and the mind—a disjuncture that the bizarre quantum world made abundantly clear:

THE great pre-Socratic systems that we have been considering were confronted, in the latter half of the fifth century, by a sceptical movement, in which the most important figure was Protagoras, chief of the Sophists. The word “Sophist” had originally no bad connotation; it meant, as nearly as may be, what we mean by “professor.” A Sophist was a ma

Logic requires that people find universal laws, but outside of scientific fields and once human psychology has a role to play, it is perfectly possible for behavior to become contradictory.

A tax rise can cause you to work less because the returns of your labor are lower, or work harder to maintain your present level of

Yet the paradox is that scientific methodology is the product of human hands and thus cannot reach some permanent truth.