破坏东西比创造它们容易得多。

The power of abstraction is that it allows us to ignore details that are not relevant to the task at hand.

The real competition is not between products, but between business models.

The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all.

No great artist ever sees things as they really are ,If he did he would cease to be a artist.