The mind-body problem is not just a local problem, but one that confronts us with a deep mystery about the universe.

Writing is the art of making the invisible visible.

Intolerance of others’ views (no matter how ignorant or incoherent they may be) is not simply wrong; in a world where there is no right or wrong, it is worse: it is a sign you are embarrassingly unsophisticated or, possibly, dangerous.