Even as rigorous a determinist as Karl Marx, who at times described the social behaviour of the bourgeoisie in terms which suggested a problem in social physics, could subject it at other times to a withering scorn which only the presupposition of moral responsibility could justify.

How can you do both? In physics we try to tell people in such a way that they understand something that nobody knew before. In the case of poetry, it’s the exact opposite.” Flattered, Robert just laughed.

It is now quite lawful for a Catholic woman to avoid pregnancy by a resort to mathematics, though she is still forbidden to resort to physics or chemistry.

We can deduce, often, from one part of physics like the law of gravitation, a principle which turns out to be much more valid than the derivation.

In physics the truth is rarely perfectly clear, and that is certainly universally the case in human affairs. Hence, what is not surrounded by uncertainty cannot be the truth.

Science is beautiful when it makes simple explanations of phenomena or connections between different observations. Examples include the double helix in biology and the fundamental equations of physics.

There is nothing that living things do that cannot be understood from the point of view that they are made of atoms acting according to the laws of physics.

It’s because somebody knows something about it that we can’t talk about physics. It’s the things that nobody knows anything about we can discuss.

With quantum physics, who needs drugs?

So far as we know, all the fundamental laws of physics, like Newton’s equations, are reversible.

As revealed by physics, the truth is so remarkable, so amazing!

It is important to realize that in physics today, we have no knowledge of what energy is.

The present situation in physics is as if we know chess, but we don’t know one or two rules.

I’m going to play with physics, whenever I want to, without worrying about any importance whatsoever.

As you know, a theory in physics is not useful unless it is able to predict underlined effects which we would otherwise expect.

Computer science is not as old as physics; it lags by a couple of hundred years. However, this does not mean that there is significantly less on the computer scientist’s plate than on the physicist’s: younger it may be, but it has had a far more intense upbringing!

Physics isn’t the most important thing. Love is.

If all of mathematics disappeared, physics would be set back by exactly one week.

Physics is like sex: sure, it may give some practical results, but that’s not why we do it.

The Philosophy of Nature takes up the material, prepared for it by physics out of experience, at the point to which physics has brought it, and again transforms it, without basing it ultimately on the authority of experience. Physics therefore must work into the hands of philosophy, so that the latter may translate into a true comprehension (Begriff) the abstract universal transmitted to it, showing how it issues from that comprehension as an intrinsically necessary whole.

Physics, beware of metaphysics.

If you’re teaching, say, physics, there’s no point in persuading a student that you’re right. You want to encourage them to find out what the truth is, which is probably that you’re wrong.

I try to show the public that chemistry, biology, physics, astrophysics is life. It is not some separate subject that you have to be pulled into a corner to be taught about.

In physics, opinions don’t matter, only demonstrated experiments. The day the fellow succeeds, if ever, he won’t need anybody else’s opinion.

Physics is the only profession in which prophecy is not only accurate but routine.

The fundamental concept in social science is Power, in the same sense in which Energy is the fundamental concept in physics.

Physics tells us much less about the physical world than we thought it did.

Physics is mathematical not because we know so much about the physical world, but because we know so little: it is only its mathematical properties that we can discover.

In the beginning, there was physics.

The remarkable feature of physical laws is that they apply everywhere, whether or not you choose to believe in them. After the laws of physics, everything else is opinion.