The strength of a habit is proportional to the amount of reinforcement.
新殖民地的建立者，无论他们最初可能设想出多么乌托邦的人类美德和幸福，都无一例外地在他们最早的实际需求中认识到，必须分配一部分处女地作为墓地，另一部分作为监狱的所在地。
"In computer science, we are always trying to find the balance between expressiveness and tractability."
Every risk is worth taking as long as it's for a good cause, and contributes to a good life.
The value chain is the set of activities through which a product or service is created and delivered to customers.