等待某件事的想法让它变得更加令人兴奋。
The most important part of teaching is to teach what it is to know.
采矿效率不仅仅是速度;而是用更少的浪费做更多的事。
儿童的进步不是取决于年龄,而是取决于能够自由地观看他周围的一切。
There is no true liberty without the liberty of thought.
An expert is a person who has made all the mistakes that can be made in a very narrow field.