'Jeff, what does Day 2 look like?' 'Day 2 is stasis. Followed by irrelevance. Followed by excruciating, painful decline. Followed by death. And that is why it is always Day 1.' To be sure, this kind of decline would happen in extreme slow motion. An established company might harvest Day 2 for decades, but the final result would still come.

剑鞘保护剑的锋利，自己却满足於它自己的迟钝。

解释：树冠大了必然会折断，尾巴大了自然不能摆动，这是你知道的道理。

I not only came to understand that 'change' was a part of Josie, and that I should be prepared to adapt to it, but I also began to realize that this was not a trait unique to Josie; I came to understand that people often feel the need to present a carefully prepared version of themselves to the outside world - much like arranging a shop window - and once the moment has passed, there's no need to take it too much to heart.

"I like to draw ordinary people doing ordinary things."

Innovation is seeing what everybody has seen and thinking what nobody has thought.

Even in abstraction, mathematics has profound real-world applications.