The greatest theorems are those that reveal hidden connections.

解析：知道自己还有所不知，这是很高明的。不知道却自以为知道，这就是很糟糕的。

We are all in the gutter, but some of us are looking at the stars.

Innovation in agriculture is not just about technology; it's about changing mindsets.

残酷的不是这个世界，而是世界里的人。