Science is the business of generating testable hypotheses.

The experience of climbing Kilimanjaro affected me so powerfully that, for a long time afterward, if I caught myself saying, "I'm not a person who likes to do that activity, eat that food, listen to that music," I would automatically go out and do what I imagined I didn't like. Generally I found I was wrong about myself - I liked what I thought I wouldn't like. And even if I didn't like the particular experience, I learned I liked having new experiences.

If you don't know history, then you don't know anything. You are a leaf that doesn't know it is part of a tree.

God creates dinosaurs, God kills dinosaurs, God creates man, man kills God, man brings back dinosaurs.

I hadn't traveled with the intention of learning about anything except myself. And the real point of all this travel was not what I had come to believe or disbelieve about the wider world, but what I had learned about myself.

The rules of grammar exist in large part to permit readers and writers to operate from a shared set of expectations.

Nobody believes a weather prediction twelve hours ahead. Now we're being asked to believe a prediction that goes out 100 years into the future? And make financial investments based on that prediction? Has everybody lost their minds?