可持续发展不是一种选择，而是我们对后代的责任。
Train people well enough so they can leave, treat them well enough so they don't want to.
The future of construction materials lies in smarter, greener solutions that don't compromise on quality.
You are too generous to trifle with me. If your feelings are still what they were last April, tell me so at once. My affections and wishes are unchanged, but one word from you will silence me on this subject for ever.
Every day is a new opportunity to change your life.
The historian's first duty is to tell the truth as he sees it, regardless of whom it pleases or displeases.