In the teaching of geography and history a sympathetic understanding (should) be fostered for the characteristics of the different peoples of the world, especially for those who we are in the habit of describing as "primitive.

Playfullness is the essential feature of productive thought.

It is an outcome of faith that nature-as she is perceptible to our five senses-takes the character of such a well formulated puzzle.

Conventional words or other signs have to be sought for laboriously only in a second stage, where the associative play already referred to is sufficiently established and can be reproduced at will.

The world we have created is a product of our thinking.

The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it.

Manager solves problems, leader prevents them.