如果你想解决大问题，首先要提出正确的问题。
If you want to solve big problems, start by asking the right questions.
To be natural is such a very difficult pose to keep.
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
"The act of remembering is a way of reclaiming our history and asserting our presence in the world."
In times of crisis, true leadership is measured by actions, not words.
The universe we observe has precisely the properties we should expect if there is, at bottom, no design, no purpose, no evil, no good, nothing but blind, pitiless indifference.