英语正能量-人为什么要保持乐观？

人为什么要保持乐观？
I'm an optimist. I've always believed the future is going to be better than the past. The great thing about human beings, myself in particular, is that I can change. I can do better. If you can get up every day, stay optimistic, and believe the future is better than the past, those few things get you through a lot of tough times.
-Jeffery Immelt, CEO of GE
我是个乐观主义者。我一向相信未来会比过去好。人类的可贵之处，特别是我自己 ，是我可以改变，我可以做的更好。如果你可以在每天清晨醒来并保持乐观，相信未来将比过去好，这将带领你克服很多困难。
-通用电气公司首席执行官 杰夫. 伊梅尔特
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