Although quantum mechanics has been around for nearly 70 years, it is still not generally understood or appreciated, even by those that use it to do calculations.

If time travel is possible, where are the tourists from the future?

What is important is that we have the ability to create.

The idea of 10 dimensions might sound exciting, but they would cause real problems if you forget where you parked your car.

So next time someone complains that you have made a mistake, tell him that may be a good thing. Because without imperfection, neither you nor I would exist.

Real science can be far stranger than science fiction and much more satisfying.

A model is a good model if first it interprets a wide range of observations in terms of a simple and elegant model, and second if the model makes definite predictions that can be tested, and possibly falsified, by observation.