元素是自然的字母表,而我们正在学习阅读。
The biggest risk is not taking any risk. In a world that is changing quickly, the only strategy that is guaranteed to fail is not taking risks.
可持续性不是一个流行词,而是矿业前进的唯一道路。
 错误的事实对科学进步极为有害,因为它们常常长久存在。
The teacher is not in school to impose certain ideas or to form certain habits in the child, but is there as a member of the community to select the influences which shall affect the child and to assist him in properly responding to those influences.
The only way to do great work is to love what you do.