在弦理论的景观中，可能有10^500种不同的真空状态，每种状态对应一个不同的可能宇宙。
In the landscape of string theory, there are perhaps 10^500 different vacuum states, each corresponding to a different possible universe.
解析：知道自己还有所不知，这是很高明的。不知道却自以为知道，这就是很糟糕的。
The best trades are the ones in which you have all three things going for you: fundamentals, technicals, and market tone. If you can find a trade that has all three of these characteristics, you have found a potential goldmine.