Sustainable quarrying means listening to the land as intently as we listen to shareholders.

"To write is to breathe life into the shadows of our imagination."

The rule, or measuring rod, which the behaviorist puts in front of him always is: Can I describe this bit of behavior I see in terms of "stimulus and response"?

The only person who is educated is the one who has learned how to learn and change.

The most important thing in a program is the data structure.

即使输了，我也能学到东西。