如果不符合现实，最优雅的理论也是无用的。
The most elegant theories are useless if they don't correspond to reality.
In business, if you're not moving forward, you're falling behind.
People who decry the fact that businesses are in business "just to make money" seldom understand the implications of what they are saying. You make money by doing what other people want, not what you want.
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.