我写作是为了理解这个世界。

Quality is never an accident; it is always the result of intelligent effort.

When we understand knowledge-based systems, it will be as before -- except our fingertips will have been singed.

Sustainability is not an option; it's a responsibility we owe to future generations.

关键在于保持谦逊和渴望。

要给儿童提供一个使他们得到满足的环境，必须努力了解儿童的需要。