Make everything as simple as possible, but not simpler.
The scientific theory I like best is that the rings of Saturn are composed entirely of lost airline luggage.
A scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die and a new generation grows up that is familiar with it.
The great tragedy of science - the slaying of a beautiful hypothesis by an ugly fact.
One may say the eternal mystery of the world is its comprehensibility.
The greatest discoveries of science have always been those that forced us to rethink our beliefs about the universe and our place in it.
The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.
When people thought the earth was flat, they were wrong. When people thought the earth was spherical, they were wrong. But if you think that thinking the earth is spherical is just as wrong as thinking the earth is flat, then your view is wronger than both of them put together.
In science, the credit goes to the man who convinces the world, not to the man to whom the idea first occurs.
The more success the quantum theory has, the sillier it looks
Creationists make it sound as though a 'theory' is something you dreamt up after being drunk all night.
Science is the great antidote to the poison of enthusiasm and superstition.
Consensus is invoked only in situations where the science is not solid enough.
Even if the open windows of science at first make us shiver after the cozy indoor warmth of traditional humanizing myths, in the end the fresh air brings vigor, and the great spaces have a splendor of their own.
Science may be described as the art of systematic over-simplification.
Reason, observation, and experience; the holy trinity of science.
It is more important to have beauty in one's equations than to have them fit experiment.
A theory which is not refutable by any conceivable event is non-scientific. Irrefutability is not a virtue of a theory (as people often think) but a vice.
You know how it always is, every new idea, it takes a generation or two until it becomes obvious that there's no real problem. It has not yet become obvious to me that there's no real problem. I cannot define the real problem, therefore I suspect there's no real problem, but I'm not sure there's no real problem.
I have second thoughts. Maybe God is malicious. Told to Valentine Bargmann.
or simply:
