What does the couplet of Li Ka-shing hanging in Li Ka-shing's office mean?

On the wall of Li Ka-shing's office, there is the only calligraphy in the office, which is Li Ka-shing's favorite in recent years. It says left: make a first-class wish/have a middle-class life/enjoy a second-class happiness; Choose a high place to stand/find a flat place to live/walk to a wide place. I like this couplet very much, but the culture is limited and I can't fully understand its meaning. Can you ask the teacher to interpret it?

85 100000 hotline should be round: explained by Professor Chi Changhai from China Department of Language and Literature, School of Humanities, Zhejiang University.

"Make a first-class wish, get a second-class marriage and enjoy the next-class happiness" means to live an ordinary life, have lofty aspirations and only seek a middle fate. "Choose a high place to stand, find a flat place to sit, and walk in a wide place" means to be far-sighted, to be a low-key person, and to leave room for things.

"These 24 words have condensed the philosophy of life of ancient sages in China, and they are extremely bright and mean. The core idea is to aim high, be down-to-earth in career and life, and make progress and retreat. No matter how complicated the contradiction is, it can be changed without being surprised, and it is in distress without chaos. " Professor Chi said.