Sustainability is the future of quarrying, and we must act now.
可持續(xù)性是采石業(yè)的未來，我們必須立即行動。
譯文 ：做學(xué)問的人，只要事事留心認(rèn)真、一絲不茍，德行、學(xué)業(yè)的進(jìn)步就會像涓涓流水一樣不會終止。
The use of a program to prove the 4-color theorem will not change mathematics - it merely demonstrates that the theorem, a challenge for a century, is a finite problem.
The only person who cannot be helped is that individual who blames others.
凡是有不和的地方，我們要為和諧而努力；凡是有謬誤的地方，我們要為真理而努力；凡是有疑慮的地方，我們要為信任而努力；凡是有絕望的地方，我們要為希望而努力。
友情是超越時間的紐帶。
我不害怕走少有人走的路。
Foreign powers do not seem to appreciate the true character of our Government.