Christianity and Islam are today the most numerous and fastest growing religions globally. Together they encompass more than half of humanity. Consequence: both are here to stay.

Some Jews and Muslims accuse Christians of being idolatrous for believing in the Trinity. My response to both groups is that they fundamentally misunderstand the Christian understanding of the Trinity.

Theology is not only about understanding the world; it is about mending the world.

If I say, 'I forgive you,' I have implicitly said you have done something wrong to me. But what forgiveness is at its heart is both saying that justice has been violated and not letting that violation count against the offender.

I loved education, and, yes, I did want to go on learning.

By making all my materials freely available through 'Giving 2.0' ProjectU, I am on a mission to extend philanthropy education to colleges globally and far beyond campus walls.

Ours is an age of pedagogy. Anxious parents instruct their children more and more, at younger and younger ages, until they're reading books to babies in the womb.

I've worked with more than 50 directors ,and I've paid attention since day one. That's pretty much been my education, apart from studying art history and shooting with my own cameras. I've seen 50 different sets of mistakes and 50 different ways of achieving. You just leave the bad part out.