Prejudices are so to speak the mechanical instincts of men: through their prejudices they do without any effort many things they would find too difficult to think through to the point of resolving to do them.

...but prejudices, like odorous bodies, have a double existence both solid and subtle — solid as the pyramids, subtle as the twentieth echo of an echo, or as the memory of hyacinths which once scented the darkness.

What a blessing it would be if we could open and shut our ears as easily as we open and shut our mouths

The most dangerous of all falsehoods is a slightly distorted truth.

The highest level than can be reached by a mediocre but experienced mind is a talent for uncovering the weaknesses of those greater than itself.

When a book and a head collide and a hollow sound is heard, must it always have come from the book?