Only a life lived for others is a life worth while.

The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.

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 patriotism, how violently I hate all this, how despicable and ignoble war is; I would rather be torn to shreds than be part of so base an action! It is my conviction that killing under the cloak of war is nothing but an act of murder.

As far as the laws of mathematics refer to reality, they are not certain, and as far as they are certain, they do not refer to reality.

The important thing is not to stop questioning.

"My life is a simple thing that would interest no one. It is a known fact that I was born and that is all that is necessary.

"My religion consists of a humble admiration of the illimitable superior spirit who reveals himself in the slight details we are able to perceive with our frail and feeble mind.

"Imagination is more important than knowledge.

"Everything should be made as simple as possible, but not simpler.

Each of us visits this Earth involuntarily, and without an invitation. For me, it is enough to wonder at the secrets.

"I want to know Gods thoughts.... all the rest are just details

Technological progress is like an axe in the hands of a pathological criminal.

Great spirits have always encountered violent opposition from mediocre minds.

He who joyfully marches to music rank and file, has already earned my contempt. He has been given a large brain by mistake, since for him the spinal cord would surely suffice. This disgrace to civilization should be done away with at once. Heroism at command, 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.

I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.

As far as the laws of mathematics refer to reality, they are not certain; and as far as they are certain, they do not refer to reality.

The further the spiritual evolution of mankind advances, the more certain it seems to me that the path to genuine religiosity does not lie through the fear of life, and the fear of death, and blind faith, but through striving after rational knowledge.

Too many of us look upon Americans as dollar chasers. This is a cruel libel, even if it is reiterated thoughtlessly by the Americans themselves.

Theories should be as simple as possible, but not simpler.

The hardest thing in the world to understand is the income tax.