[I] must seek in the stars that which was denied [to me] on earth.

He who joyfully marches to music in rank and file has already earned my contempt. He has been given a large brain by mistake, since for him the spinal cord would fully suffice. This disgrace to civilization should be done away with at once. Heroism at command, senseless brutality, deplorable love-of-country stance, how violently I hate all this, how despicable and ignoble war is; I would rather be torn to shreds than be a part of so base an action! It is my conviction that killing under the cloak of war is nothing but an act of murder.

Common sense needs constant reappraisal.

If I give you a pfennig, you will be one pfennig richer and I'll be one pfennig poorer. But if I give you an idea, you will have a new idea, but I shall still have it too.

You have to color outside the lines once in a while if you want to make your life a masterpiece.

When forced to summarize the general theory of relativity in one sentence: Time and space and gravitation have no separate existence from matter.

Art is standing with one hand extended into the universe and one hand extended into the world, and letting ourselves be a conduit for passing energy.