未来是未知的，所以我们应该珍惜现在。
The past is a foreign country; they do things differently there.
每把锁都有钥匙，每个问题都有解决方案。
Literature is the art of finding the extraordinary in the ordinary.
When I look at the world I'm pessimistic, but when I look at people I am optimistic.
The division of labor in manufacturing is the great principle by which we gain advantage over other nations.
