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The only way to achieve the impossible is to believe it is possible.
失意之事,大多是由于洋洋得意所致。
The leather industry must evolve or risk becoming obsolete.
I work hard, and I do good, and I’m going to enjoy myself. I’m not going to let you restrict me.
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 probably not important to mathematics.
Freedom is not merely the opportunity to do as one pleases; neither is it merely the opportunity to choose between set alternatives. Freedom is, first of all, the chance to formulate the available choices, to argue over them - and then, the opportunity to choose.