停在港口的船是安全的，但那不是造船的目的。

The more you are in a state of gratitude, the more you will attract things to be grateful for.

The core of large-scale farming is standardization, and the prerequisite for standardization is scientization.

电影的美在于它能将你带到另一个世界。

在数学中，提出问题的艺术必须比解决问题更有价值。

The problem with quantitative easing is that it works in practice but it doesn't work in theory.