Perfection of means and confusion of ends seem to characterize our age.
Politics is for the present, but an equation is for eternity.
Pure mathematics is, in its way, the poetry of logical ideas.
Only one who devotes himself to a cause with his whole strength and soul can be a true master. For this reason mastery demands all of a person.
Only two things are infinite, the universe and human stupidity, and I’m not sure about the former.
Our task must be to free ourselves by widening our circle of compassion to embrace all living creatures and the whole of nature and its beauty.
Occurrences in this domain are beyond the reach of exact prediction because of the variety of factors in operation, not because of any lack of order in nature.
Once we accept our limits, we go beyond them.
One may say the eternal mystery of the world is its comprehensibility.
One strength of the communist system of the East is that it has some of the character of a religion and inspires the emotions of a religion.
Only a life lived for others is a life worthwhile.
Nothing is more destructive of respect for the government and the law of the land than passing laws which cannot be enforced.
No problem can be solved from the same level of consciousness that created it.
Not everything that can be counted counts, and not everything that counts can be counted.
No amount of experimentation can ever prove me right; a single experiment can prove me wrong.
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.
Nationalism is an infantile disease. It is the measles of mankind.
Never do anything against conscience even if the state demands it.
Never lose a holy curiosity.
Memory is deceptive because it is colored by today’s events.