The highest court is in the end one’s own conscience and conviction—that goes for you and for and every other physicist—and before any science there is first of all belief.
The superstitious know how to reproach people for their vices better than they know how to teach them virtues, and they strive, not to guide men by reason, but to restrain them by fear, so that they flee the evil rather than love virtues. Such people...
I should attempt to treat human vice and folly geometrically... the passions of hatred, anger, envy, and so on, considered in themselves, follow from the necessity and efficacy of nature... I shall, therefore, treat the nature and strength of the emo...
Denial is commonly found among persons with dissociative disorders. My favorite quotation from such a client is, "We are not multiple, we made it all up." I have heard this from several different clients. When I hear it, I politely inquire, "And who ...
There cannot be a language more universal and more simple, more free from errors and obscurities...more worthy to express the invariable relations of all natural things [than mathematics]. [It interprets] all phenomena by the same language, as if to ...
One of the first and foremost duties of the teacher is not to give his students the impression that mathematical problems have little connection with each other, and no connection at all with anything else. We have a natural opportunity to investigat...
A great discovery solves a great problem, but there is a grain of discovery in the solution of any problem. Your problem may be modest, but if it challenges your curiosity and brings into play your inventive faculties, and if you solve it by your own...
The priest invents and encourages every kind of suffering and distress so that man may not have the opportunity to become scientific, which requires a considerable degree of free time, health, and an outlook of confident positivism. Thus, the religio...
Now to exert oneself and work for the sake of amusement seems silly and utterly childish. But to amuse oneself in order that one may exert oneself, as Anacharsis puts it, seems right; for amusement is a sort of relaxation, and we need relaxation beca...
By the way, I never realized that to be nonbelieving, to be an atheist, was a thing to be proud of. It went without saying as it were. ...Our creed is indeed a queer creed. You others, Christians (and similar people), consider our ethics much inferio...
The Theory of Relativity confers an absolute meaning on a magnitude which in classical theory has only a relative significance: the velocity of light. The velocity of light is to the Theory of Relativity as the elementary quantum of action is to the ...
It is a great thing, indeed, to make a proper use of the poetical forms, as also of compounds and strange words. But the greatest thing by far is to be a master of metaphor. It is the one thing that cannot be learnt from others; and it is also a sign...
When you look more generally at life on Earth, you find that it is all the same kind of life. There are not many different kinds; there's only one kind. It uses about fifty fundamental biological building blocks, organic molecules.
So those who wished for some central cosmic purpose for us, or at least our world, or at least our solar system, or at least our galaxy, have been disappointed, progressively disappointed. The universe is not responsive to our ambitious expectations.
Many religions have attempted to make statues of their gods very large, and the idea, I suppose, is to make us feel small. But if that's their purpose, they can keep their paltry icons. We need only look up if we wish to feel small.
The more we become able to become a child again, to keep ourselves childlike, the more we can understand that because we love the world and we are open to understanding, to comprehension, that when we kill the child in us, we are no longer.
I don't know what to do, and if I did know what to do I wouldn't tell you, because if I had to tell you today then I'd have to tell you tomorrow, and when I'm gone you'd have to get somebody else to tell you.
I loved doing problems in school. I'd take them home and make up new ones of my own. But the best problem I ever found, I found in my local public library. I was just browsing through the section of math books and I found this one book, which was all...
Every day, I wake up and I say, 'Why... how... did I end up with 1.7 million Twitter followers?' It's freaky to me, every day, but that tells me that there's an appetite out there that had previously been underserved. There's an inner geek in us all,...
In the beginning, there was physics. "Physics" describes how matter, energy, space, and time behave and interact with one another. The interplay of these characters in our cosmic drama underlies all biological and chemical phenomena. Hence everything...
I look up at the night sky, and I know that, yes, we are part of this Universe, we are in this Universe, but perhaps more important than both of those facts is that the Universe is in us. When I reflect on that fact, I look up—many people feel smal...
