力量并非来自身体的能力，而是来自不屈的意志。
The child is not a passive recipient of knowledge but an active participant in the learning process.
儿童不是知识的被动接受者，而是学习过程的积极参与者。
The only true heroism in the world is to see the world as it is and still love it.
Sustainability is no longer an option; it's a necessity for survival in today's world.
Make no mistake about it: Computers process numbers - not symbols. We measure our understanding (and control) by the extent to which we can arithmetize an activity.
失败不是必要的恶。事实上，它根本不是恶。它是做新事物的必然结果。
Just be yourself, there is no one better.