Every man of genius is considerably helped by being dead

Every man of genius is considerably helped by being dead.

Knowledge is power only if man knows what facts not to bother with.

One of the greatest joys known to man is to take a flight into ignorance in search of knowledge.

Knowledge is power only if man knows what facts not to bother with.

There is nothing in which the birds differ more from man than the way in which they can build and yet leave a landscape as it was before.