We are not born for ourselves.

Suffering! We owe to it all that is good in us, all that gives value to life; we owe to it pity, we owe to it courage, we owe to it all the virtues.

数学家研究纯数学不是因为它有用；他研究它是因为他喜欢它，他喜欢它是因为它美丽。

解析：其实说的是：不着相，不动心。

建筑应该像一本书一样可读。

农业的未来在于平衡生产力与环境责任。