There is nothing new to be discovered in physics now. All that remains is more and more precise measurement.

Whether we like it or not, modern ways are going to alter and in part destroy traditional customs and values.

Physicists have come to realize that mathematics, when used with sufficient care, is a proven pathway to truth.

In some sense, gravity does not exist; what moves the planets and the stars is the distortion of space and time.

Without the time, the world is only a static material; without the sense, the world is only a dead living system

Our civil rights have no dependence on our religious opinions any more than our opinions in physics or geometry...

There is no democracy in physics. We can't say that some second-rate guy has as much right to opinion as Fermi.

For the moment we might very well can them DUNNOS (for Dark Unknown Nonreflective Nondetectable Objects Somewhere).

The earth doesn't move backward (very much) when you walk only because it's much more massive than you are.

If antimatter and matter make contact, both are destroyedinstantly. Physicists call the process ‘annihilation.

Is numerical equality (forced by the use of specific physical units) the same as conceptual equality? Of course NOT!

...quantum mechanics—the physics of our world—requires that you hold such pedestrian complaints in abeyance.

What believer of faith among us can claim to understand the exact mechanistic structure of a world created by a god/God.

If one is working from the point of view of getting beauty into one's equation, ... one is on a sure line of progress.

Physics is really nothing more than a search for ultimate simplicity, but so far all we have is a kind of elegant messiness.