One can't proceed from the informal to the formal by formal means.

Your time is limited, don't waste it living someone else's life. Don't be trapped by dogma, which is living with the results of other people's thinking. Don't let the noise of others' opinions drown out your own inner voice. And most important, have the courage to follow your heart and intuition. They somehow already know what you truly want to become.

合作是解决复杂挑战的关键。

要养活世界，我们必须首先学会尊重地球的极限。

释义：仔细观察时局的变化，顺应形势的发展并加以引导。这句话强调要善于把握时机，灵活应对变化。

在物理学的世界里，我们经常发现最简单的问题最难回答。

I am made and remade continually. Different people draw different words from me.

The moment you take responsibility for your life is the moment you start changing it.