The power of abstraction is that it allows us to ignore details that are not relevant to the task at hand.
预测未来的最好方法就是创造未来。
Looking back at the 21-year-old that I was at graduation, is a slightly uncomfortable experience for the 42-year-old that she has become. Half my lifetime ago, I was striking an uneasy balance between the ambition I had for myself, and what those closest to me expected of me.