One of the best rules in conversation is, never to say a thing which any of the company can reasonably wish had been left unsaid.
What we become depends on what we read after all of the professors have finished with us. The greatest university of all is a collection of books.
We owe something to extravagance, for thrift and adventure seldom go hand in hand.
To be able to fill leisure intelligently is the last product of civilization, and at present very few people have reached this level.
You need only reflect that one of the best ways to get yourself a reputation as a dangerous citizen these days is to go about repeating the very phrases which our founding fathers used in the struggle for independence.
Walking is the best possible exercise. Habituate yourself to walk very far.
The real problem is not whether machines think but whether men do.