Children don’t heed the life experiences of their parents, and nations ignore history. Bad lessons always have to be learned anew.

The armament industry is indeed one of the greatest dangers that beset mankind. It is the hidden evil power.

Joy in looking and comprehending is nature's most beautiful gift.

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.

What I see in Nature is a magnificent structure that we can comprehend only very imperfectly, and that must fill a thinking person with a feeling of humility. This is a genuinely religious feeling that has nothing to do with mysticism.

Hope that justice will be done to those brave men who stood up for their convictions.

Joy and amazement of the beauty and grandeur of this world of which man can just form a faint notion.