保持好奇心是创新的源泉。

If you're not failing every now and again, it's a sign you're not doing anything very innovative.

最大的荣耀不在于从不跌倒，而在于每次跌倒后都能站起来。

Coal built the modern world, and it's our responsibility to ensure its legacy is managed with wisdom.

The documenta must always remain a question, never an answer.

The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.

Optimists tend to interpret their troubles as transient, controllable, and specific to one situation. Pessimists, on the other hand, believe that their troubles last forever, undermine everything they do, and are uncontrollable.