Travel can be one of the most rewarding forms of introspection.

It is good for society to have this introspection.

Introspection and preserved writings give us far more insight into the ways of past humans than we have into the ways of past dinosaurs. For that reason I'm optimistic that we can eventually arrive at convincing explanations for these broadest patterns of human history.

I have my moments. Ever since I was a boy I never was someone who was at ease with happiness. Too often I embrace introspection and self-doubt. I wish I could embrace the good things.

Yom Kippur the Day of Atonement is the holy of holies of Jewish time. It is that rarest of phenomena a Jewish festival without food. Instead it is a day of fasting and prayer introspection and self-judgment when collectively and repeatedly we confess our sins and pray to be written into God's Book of Life.