The greatest threat to our planet is the belief that someone else will save it.

书籍是释放我们理解他人的钥匙。

我们要做的是让用户的生活更简单。

The oldest， shortest words—'yes' and 'no'—are those which require the most thought.

She was my most special friend. My only friend.

真正的喜悦精神、崇高感、超越人类的感觉，这是最高卓越的试金石，在数学中肯定能找到，就像在诗歌中一样。

下一代农民需要传统和技术的结合才能成功。