Innovation is not just about creating something new; it's about improving what already exists.

The universe would look to a two-dimensional creature who spend its life moving on the service of what turned out to be a globe， it could travel for millions of years and would always return to its starting point， it would never be conscious of what was above it or beneath it.

事实总是少于真正发生的事情。

世界上充满了显而易见的事情，但没有人会注意到它们。