relativity quotes

I am not enough of a mathematician to be able to judge either the well-foundedness or the limits of relativity in physics.

Trying to understand the way nature works involves a most terrible test of human reasoning ability. It involves subtle trickery, beautiful tightropes of logic on which one has to walk in order not to make a mistake in predicting what will happen. The quantum mechanical and the relativity ideas are examples of this.

If you are in a spaceship that is traveling at the speed of light, and you turn on the headlights, does anything happen?

When you are courting a nice girl an hour seems like a second. When you sit on a red-hot cinder a second seems like an hour. That’s relativity.