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。