赏析：描述了人在梦中不知道自己在做梦，醒来后才知道是梦的现象，引发了对人生如梦的思考。

The only limits you have are the limits you believe.

我不害怕失败，我害怕不去尝试。

The best stock to buy is the one you already own.

Agricultural modernization is not just mechanization but the intelligent upgrading of the entire industrial chain.

The most important part of teaching is to teach what it is to know.

True scientific progress is achieved not by mere accumulation of facts, but by the continuous refinement of theories and models.