With the sense of sight, the idea communicates the emotion, whereas, with sound, the emotion communicates the idea, which is more direct and therefore more powerful.

Great people plant trees they'll never sit under.

A clash of doctrine is not a disaster, it is an opportunity.

In order to acquire learning, we must first shake ourselves free of it.

Do not teach too many subjects and what you teach, teach thoroughly.

Whenever a text-book is written of real educational worth, you may be quite certain that some reviewer will say that it will be difficult to teach from it. Of course it will be difficult to teach from it. It it were easy, the book ought to be burned.

The fixed person for the fixed duties who in older societies was such a godsend, in future will be a public danger.