Climbing: refers to the promotion of a person's social status

Ladder: refers to the way of promotion of a person's social status.

Clean: refers to the civilization, legal system, etc. in the path.

"When you climb up, be sure to keep the ladder clean, otherwise you may slip when you come down." This famous saying comes from the American management scientist Lansdowne, which is known in the industry as "Langsden Principles".

Lansdon first pointed out that man is an advanced animal that climbs upward. Everyone at the grassroots level of an enterprise wants to be promoted. Even if he is a senior executive, who can say that he doesn’t want to continue to climb up?

A gentleman climbs high and climbs in a wise way. Lansden told people: "Be sure to keep the ladder clean." He briefly and concisely stated the conditions that a ladder should meet when climbing high: First, the ladder must be complete, and each step must not be damaged, otherwise, you will not be able to climb in mid-air. , due to hidden dangers at a certain level, you may fall down; secondly, the ladder must be placed flat. If you are eager to climb up, if you are careless, the ladder may lean on it crookedly or stand on one foot, it may tilt and fall at any time. Lansden explains a person's promotion of social status with a vivid metaphor of climbing up a ladder, which is easy to understand. Society is like a huge invisible ladder, and everyone is at a certain level of the ladder. When climbing, people who climb quickly will often step on other people's shoulders, regardless of whether the other person is stepped on or trampled to death. Here comes what Lansden calls "cleanliness". The ladder must not only be "tidy" but also "clean". It is unclean to step on other people's shoulders and benefit yourself at the expense of others.

Lasden finally said, "Otherwise you might slip when you come down." No matter how high anyone climbs, he will eventually "come down". If you don't "keep the ladder tidy" when climbing, you may slip and fall when you come down, and the higher you climb, the worse your fall may be.