The Apollo pictures of the whole Earth conveyed to multitudes something well known to astronomers: On the scale of the worlds - to say nothing of stars or galaxies - humans are inconsequential, a thin film of life on an obscure and solitary lump of rock and metal

Whatever the reason you're on Mars, I'm glad you're there, and I wish I was with you.

It does no harm to the romance of the sunset to know a little bit about it.

You have to know the past to understand the present.

We are the universe experiencing itself.

In many cultures it is customary to answer that God created the universe out of nothing. But this is mere temporizing. If we wish courageously to pursue the question, we must, of course ask next where God comes from? And if we decide this to be unanswerable, why not save a step and conclude that the universe has always existed?

Science is not only compatible with spirituality; it is a profound source of spirituality.