译文：读过的旧书要反复地阅读，读透读深才能知道书中的道理。赏析：经典的好书必须要反复阅读，常读常新，读懂书中的内容就会受益匪浅。

Efficiency in farming should never come at the cost of animal welfare.

"Reading is the key to unlocking the world."

The most important thing in communication is hearing what isn't said.

Mental phenomena are tools in the service of life.

语言是一个自由创造的过程；其法则和原则是固定的，但生成原则的运用方式是自由且无限多样的。

The first erroneous assumption is that quality means goodness, or luxury, or shininess, or weight.