We must be prepared to make heroic sacrifices for the cause of peace that we make ungrudgingly for the cause of war. There is no task that is more important or closer to my heart.
We still do not know one thousandth of one percent of what nature has revealed to us.
Whoever is careless with the truth in small matters cannot be trusted with the important matters.
Whoever undertakes to set himself up as judge in the field of truth and knowledge is shipwrecked by the laughter of the Gods.
Women marry men hoping they will change. Men marry women hoping they will not. So each is inevitably disappointed.
Three Rules of Work: Out of clutter find simplicity; From discord find harmony; In the middle of difficulty lies opportunity.
Let every man be respected as an individual and no man idolized.
I never teach my pupils; I only attempt to provide the conditions in which they can learn.
If my theory of relativity is proven successful, Germany will claim me as a German and France will declare that I am a citizen of the world.
If you want to live a happy life, tie it to a goal, not to people or things.