The new address of a kindergarten is next to a busy highway. The playground of the kindergarten is spacious and flat, and many entertainment facilities are installed to attract children. But in outdoor activities, children would rather huddle in the corridor than play on the lawn of the playground. Although the distance between the playground and the expressway is very short, the cars whizzing by on the expressway still make the children very nervous. No matter how coaxed or persuaded by the teacher, it doesn't work.

The psychologist gave the director an idea. The next day, the workers erected a metal fence around the playground. Seeing the fence, the children ran to the lawn to play one after another. The fence in the kindergarten not only does not restrict the children's freedom, but also gives them more free space.

Psychologists say that well-defined constraints can give people more sense of security, while unrestrained laissez-faire will make people feel overwhelmed.

Illuminate others and illuminate yourself.

Blind people always carry a bright lantern in their hands when they walk at night. Others asked him curiously, "Why are you carrying a lantern when you can't see it yourself?"

The blind man was overjoyed and said, "This truth is very simple. I don't hold a lantern to light the road for myself, but to make it easy for others to see me and not bump into me by mistake, so that I can protect my own safety and help myself. "