Science isn't just about solving this or that puzzle. It's about understanding how the world works: the whole world from the vastness of the cosmos to the particularity of an individual human life. It's worth thinking about how all the different ways we have to talk about the world manage to fit together.

A full understanding of what happens in our everyday lives needs to take into account what happened at the Big Bang. And not only is that intrinsically interesting and just kind of cool to think about, but it's also a mystery that is not given much attention by working scientists; it's a little bit underappreciated.

The idea that time is an illusion is an old one, predating any Times Square ball drop or champagne celebrations. It reaches back to the days of Heraclitus and Parmenides, pre-Socratic thinkers who are staples of introductory philosophy courses.

If time travel were possible, you still wouldn't be able to change the past - it's already happened!

It makes a difference what we choose to experience during sleep. Many of us think of sleep as a chance to get away from it all. But sleep is also a chance to return to the joys of our spiritual heritage - our universal awareness.

Faith lives inside of us in every circumstance.

I miss having my mom and close friends around. Thank God for Skype and Face-Time, which keep me connected... but interacting digitally can't come close to the feeling of being hugged by my mom or getting together for a meal with my friends on the same table.

Oprah Winfrey represents the most ingenious and creative expression of black spiritual genius in the public mainstream that we've had in quite a long time, if ever.