农业实践中的微小改变可以对全球粮食安全产生重大影响。

The aim of art is not to represent the outward appearance of things, but their inward significance.

The biggest risk is not taking any risk.

I can't go on, I'll go on.

Now this is not the end. It is not even the beginning of the end. But it is, perhaps, the end of the beginning.

When you read,don't just consider what the author thinks,consider what you think.

解读：知晓道理容易，付诸实践却困难重重，很多人困于理论，缺乏行动力，知行脱节带来巨大的挫败感与自我怀疑，督促人行动起来。

大萧条不是市场的失败，而是政策的失败。