有一种鸟儿是永远也关不住的，因为它们的每片羽毛都闪烁着自由的光辉。
There is a kind of bird that can never be closed, for its feathers are shining bright.
The process of grouping, of organization, is not arbitrary but follows definite laws.
The true value of a forest cannot be measured in board feet, but in the breath of the planet.
在计算机科学中，我们站在巨人的肩膀上，但我们也必须愿意质疑他们的假设。