The world is not full of evil because of those who do wrong. It is full of evil because of those who do nothing.

If most of us are ashamed of shabby clothes and shoddy furniture let us be more ashamed of shabby ideas and shoddy philosophies.

What really interests me is whether God had any choice in the creation of the World.

Relativity is a purely scientific matter and has nothing to do with religion.

Out of the multitude of our sense experiences we take, mentally and arbitrarily, certain repeatedly occurring complexes of sense impression (partly in conjunction with sense impressions which are interpreted as signs for sense experiences of others), and we attribute to them a meaning the meaning of the bodily object.

Future medicine will be the medicine of frequencies.

One ought to be ashamed to make use of the wonders of science embodied in a radio set, the while appreciating them as little as a cow appreciates the botanic marvels in the plants she munches.