The history of the past interests us only in so far as it illuminates the history of the present.

Every now and then we discover in the seething mass of humanity round us a person who does not seem to need anybody else, and the contrast with ourselves is stinging.

Learn to attack things frontally but according to the most scientific methods.

Education is the methodical creation of the habit of thinking.

Prejudices subsist in people's imagination long after they have been destroyed by their experience.

A school is a place through which you have to pass before entering life, but where the teaching proper does not prepare you for life.

Americans cannot realize how many chances for mental improvement they lose by their inveterate habit of keeping six conversations when there are twelve in the room.