勇敢是一种德行，不仅在战斗中，在生活中的各个方面都需要勇敢。

"Innovation is the key to solving many of the world's problems, and it requires freedom to experiment and take risks."

True progress happens when we stop defending the status quo and start challenging it.

释义：善于运用自己的才能，才能实现财富的积累。这句话强调才能与财富的关系，提醒人们要充分发挥自身优势。

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.