Nature tends to produce constancy in all her works, but she does not always succeed.

心理过程是解决生活问题的工具。

We don't own the land, we borrow it from our children.

The world is a great clock, and we are the hands.

Every decision we make today in marine fisheries will echo for generations to come.

二十世纪的恐怖在于每个新事件的规模之大与其反响之微弱。