解释：大部分茶都是寒性的，而绿茶却是温性的，体现了茶性质的差异。

Man's main task in life is to give birth to himself, to become what he potentially is. The most important product of his effort is his own personality.

If we don’t do something now, the world our children inherit will be much poorer than the one we were given.

儿童不仅在心理上是被动的，而且像一个空花瓶，是一个有待于充满及塑造的生命。

你对生活了解得越多，你就越能成为一个好演员。

The only defense against the world is a thorough knowledge of it.

The best time to plant a tree was 25 years ago. The second best time is today.

我是那种人，如果你问我一个问题而我不知道答案，我会告诉你我不知道。但我敢打赌，我知道如何找到答案，而且我会找到答案。