农业的韧性意味着为未知做好准备，同时优化已知的部分。
The teacher who is indeed wise does not bid you to enter the house of his wisdom but rather leads you to the threshold of your own mind.
我不是说唱歌手，我是一个俄语的传奇。
老年人相信每一件事物；中年人猜疑每一件事物；青年人什么都懂。