This world is the best of all possible worlds.

The consistency of your endeavors (exercise， companionship， work) is more important than the quantity. Nothing beats small things done every day， which is way more important than what you do occasionally.

The only lies for which we are truly punished are those we tell ourselves.

The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.

"The world isn't just the way it is. It is how we understand it, no? And in understanding something, we bring something to it, no? Doesn't that make life a story?"