种树的最佳时间是20年前，其次是现在。

The most profound technologies are those that disappear. They weave themselves into the fabric of everyday life until they are indistinguishable from it.

Our Lord has written the promise of resurrection, not in books alone, but in every leaf in springtime.

我们要做的是让中国宝宝喝上世界级的好奶粉。