When we quarry with future generations in mind, stone becomes a bridge, not just a resource.
自然是所有化学变化得以实现的伟大实验室。
领导力就是为更美好的明天做出艰难的决定。
结构化程序设计支持被排除中间语言的法律。
The elements of mind are to be discovered by systematic introspection.
Government, even in its best state, is but a necessary evil; in its worst state, an intolerable one.