Sustainability is not a choice; it's an imperative for long-term success.
不通过学习却想要获取知识,就好像想要得到鱼却没有渔网一样。
我本人是个乐观主义者,因为做别的貌似没什么用。
"The best ideas come when you're not trying too hard."
儿童有着他自己的人格,他自身具有创造精神的美和尊严。这种美和尊严是永远不能磨灭的,所以他的纯洁而非常敏感的心灵需要我们最审慎的爱护。
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.