我們生產的每一盎司金屬都承載著我們對環(huán)境的承諾。
Every mathematical problem is a puzzle waiting to be solved, and every solution is a step towards greater understanding.
孤獨是自我的貧乏；獨處是自我的豐富。
The only way to tell the truth is to speak with kindness. Only the words of a loving man can be heard.