To teach mathematics is to inspire the next generation of thinkers and problem solvers.
写作是一种孤独的职业,但孤独是作家的最好朋友。
有人质疑巴菲特的投资策略只是运气好而已,他讲了一个有关机率的故事回答它们
Leadership means making tough decisions today that will benefit everyone tomorrow.