设计中最难的部分是保持功能的简洁。
The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.
Man is an animal that makes bargains: no other animal does this no dog exchanges bones with another.
The best books ask questions, not just give answers.
The founders of a new colony, whatever Utopia of human virtue and happiness they might originally project, have invariably recognized it among their earliest practical necessities to allot a portion of the virgin soil as a cemetery, and another portion as the site of a prison.