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。

On innovation: "I think frugality drives innovation， just like other constraints do. One of the only ways to get out of a tight box is to invent your way out."

自信是关键，但你必须用实力来支撑它。

"The best way to find out who you are is to get lost in a book."