A book can be a friend, a teacher, and a doorway to another world.
一本书可以是一个朋友、一位老师和通往另一个世界的门。
Not what we have, but what we enjoy, constitutes our abundance.
No arts; no letters; no society; and which is worst of all, continual fear, and danger of violent death; and the life of man, solitary, poor, nasty, brutish, and short.
在科学中，创造力和技术技能同样重要。
计算的力量不仅在于解决问题，还在于其解决问题的优雅和效率。