"Happiness is not something ready-made. It comes from your own actions."
一个好的数学问题的定义是它产生的数学,而不是问题本身。
The most important thing in architecture is to create a sense of place.
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.