定理是永恒的;它们的证明是短暂的。
The key to success is failure... Success is made up of 99 percent failure.
The end of wisdom is to dream high enough to lose the dream in the seeking of it.
"A good picture book is a silent conversation between the artist and the child."
La tradición es importante, pero también hay que saber evolucionar.
真正的美国发现还在我们面前。我们精神、我们人民、我们强大而不朽的土地的真正实现尚未到来。
When we speak of free will, the neurons have already cast their votes.