学习是系统中产生的任何变化,这种变化或多或少会永久性地改变其适应环境的能力。
We are not in the coffee business serving people, we are in the people business serving coffee.
The quality of a country's institutions is the single most important determinant of its long-term economic performance.
"真相是一面镜子,而镜子是一场游戏。"