There is nothing so eternally adhesive as the memory of power.

John Dalton's records, carefully preserved for a century, were destroyed during the World War II bombing of Manchester. It is not only the living who are killed in war.

A good question is, of course, the key by which infinite answers can be educed.

Robots will neither be common nor very good in 2014, but they will be in existence.

There is no merit to discipline under ideal circumstances. I must have it in the face of death or it is worthless.

Any book worth banning is a book worth reading.

In life, unlike chess, the game continues after checkmate.