What's the mystery of a couplet in Li Ka-shing's office?

Li Ka-shing's office is hung with such couplets, which was once amazing!

This couplet was written by a famous calligrapher and by Zuo, a famous scholar in Qing Dynasty. It was first hung in Meiyuan, Wuxi, Jiangxi!

This couplet is:

Make a first-class wish, make a middle-class wish, and enjoy the lower happiness.

Stand tall, sit flat and walk wide.

Just 20 words is the way to survive!

Zuo lifetime brave romantic, literary talent romantic, all-rounder, unparalleled! He was once rated as the first great man in 500 years by Liang Qichao, a talented person in the Republic of China!

The following is the original handwriting of Li Ka-shing's office, and there are the same couplets on the desk.