For US energy companies, however, there are huge practical difficulties to be overcome. Venezuela's state-owned oil company, PDVSA, is a shadow of its former self.
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苹果 CEO 蒂姆 · 库克：相信自己的力量
That's certainly part of it, yes. But I think much more importantly, dreaming big is a muscle. You have to exercise it from time to time. Each time I come up with a grand vision and sink dozens to hundreds of hours into it, only to walk away unfinished, I learn a bit more about how to make a dream become real.