“No matter what their gods were, what they did for a living, what they wore, the songs they sang, everything varies except love, and everybody loves.”

How can the brain — a piece of matter — love? Physics and chemistry explain the material world, but they can’t explain why it feels like something to be alive. This is the mystery of consciousness, according to these experts.

Everything you experience is filtered through your brain, and everyone’s brain is different. Neuroscientist Christof Koch explains how understanding this can deepen your connection to the world around you.

“I like to say that physics is hard because physics is easy, by which I mean we actually think about physics as students.”