The spirit of science is the spirit of seeking truth and being pragmatic.
不要欺骗自己,认为某事正在工作,而实际上它并没有,否则你会固守一个糟糕的解决方案。
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 forever.