未来总是从现在开始。
The beauty of instrumental variables is that they allow us to see the world in a new light.
I'm not going to let anyone take away my happiness.
I’m not a one-man show.
The teacher's task is not to implant facts but to place the subject to be learned in front of the learner and, through sympathy, emotion, imagination, and patience, to awaken in the learner the restless drive for answers and insights which enlarge the personal life.
训练时流汗越多,战场上流血越少。
你是你所遵循规则的受害者。
A novel is not written to give answers but to ask the right questions.