At the heart of quantum mechanics is a rule that sometimes governs politicians or CEOs-as long as no one is watching, anything goes.

The lack of understanding of something is not evidence for God. It's evidence of a lack of understanding.

Empirical explorations ultimately change our understanding of which questions are important and fruitful and which are not.

For the record: Quantum mechanics does not deny the existence of objective reality. Nor does it imply that mere thoughts can change external events. Effects still require causes, so if you want to change the universe, you need to act on it.

90% of the mass in your body comes from empty space.

It really is the most poetic thing I know about physics: you are all stardust.

Discerning the merits of competing claims is where the empirical basis of science should play a role. I cannot stress often enough that what science is all about is not proving things to be true but proving them to be false. What fails the test of empirical reality, as determined by observation and experiment, gets thrown out like yesterday's newspaper.