Long live impudence. It was my guardian angel in this world.

I was supposed to choose apractical profession, but this was simply unbearable to me.

Striving for social justice is the most valuable thing to do in life.

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.

To the Master's honor all must turn, each in its track, without a sound, forever tracing Newton's ground.

But science can only be created by those who are thoroughly imbued with the aspiration toward truth and understanding. This source of feeling, however, springs from the sphere of religion. To this there also belongs the faith in the possibility that the regulations valid for the world of existence are rational, that is, comprehensible to reason. I cannot conceive of a genuine scientist without that profound faith. The situation may be expressed by an image: science without religion is lame, religion without science is blind.

Every reminiscence is colored by the way things are today, and therefore by a delusive point of view.