The 'silly question' is the first intimation of some totally novel development.

A man really writes for an audience of about ten persons. Of course if others like it, that is clear gain. But if those ten are satisfied, he is content.

"One and one make two" assumes that the changes in the shift of circumstance are unimportant. But it is impossible for us to analyze this notion of unimportant change.

Error itself may be happy chance.

By relieving the brain of all unnecessary work, a good notation sets it free to concentrate on more advanced problems, and in effect increases the mental power of the race.

Disputing the commonsense notion that all events require the prior existence of some underlying matter or substance. There is no antecedent static cabinet.

The only use of knowledge of the past is to equip us for the present.