What is the Langsdon principle?

Langsdon principle was put forward by American management scientist Langsdon.

Be sure to keep the ladder clean when climbing up, or you may slip when coming down.

[Editor] Fable: Ungrateful Fox

A fox accidentally fell into the well and couldn't climb up. A thirsty goat passed by the well, saw the fox and asked him if the well was good. The fox rolled his eyes and said, "Well water is very sweet. You might as well come down and share it with me." The goat believed it, jumped down and choked his nose. Although he felt bad, he had to work with the fox to find a way out of the current predicament.

The fox suggested quietly, "You put your front foot on the wall of the well, and then keep your head straight. I'll jump on your back first I climbed out of the well with the horn of my foot and pulled you up. So we will all be saved. " The goat agreed. However, when the fox jumped out of the well on his back, he ran away at once. Before he left, he said to the goat, "Don't jump blindly before you see the exit clearly.