1. An inch of time is worth an inch of gold, but an inch of gold cannot buy an inch of time. 2. Three days

No thinking

Three days of mouth production, three days of non-action of hands. 3. It takes ten years to grow trees and a hundred years to cultivate people. 4.

Gold

Even if it is thrown into a pile of soil, it will shine brightly sooner or later. No matter how gorgeous the packaging of a stone is, it cannot hide its tacky nature.

5. The empty bag is difficult to stand upright