没有人民的普遍知识，自由就无法得到保障。
Liberty cannot be preserved without a general knowledge among the people.
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 biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.
Technology will be the great enabler of our net-zero ambitions.
Wall Street has too much wealth and political power.