To My MotherYou too, my mother, read my rhymesFor love of unforgotten times, And you may chance to hear once moreThe little feet along the floor.

The rain is falling all around, It falls on field and tree, It rains on the umbrellas here, And on the ships at sea.

Dreams are hopeful because they exist as pure possibility. Unlike memories, which are fossils, long dead and buried deep.

People are more likely to remember the great social interaction they had with a colleague than the great meeting they both attended.

String theory is an attempt at a deeper description of nature by thinking of an elementary particle not as a little point but as a little loop of vibrating string.

It's easier to find a new audience than to write a new speech.

Living by example - that's always a better teacher than trying to preach.

All the trees are losing their leaves, and not one of them is worried.

Most of my videos consist of fragments, one or two minutes long. They are haikus or sketches. I have thousands.

Simply believing in the existence of God is not exactly what I would call a commitment. After all, even the devil believes that God exists. Believing has to change the way we live.

But as for activism, my parents did what they could, given the constraints, but were never involved in the causes I think of when I think of activists.

O Luther, you had 95 theses . . . The matter is far more terrible-there is only one thesis. The Christianity of the New Testament does not exist at all. Here there is nothing to reform.