As follows:

1. Knowledge is bottomless, learning is boundless, life is limited, knowledge is boundless, moths fly into the flame, and they will perish themselves.

2. The frog at the bottom of the well sees too little. Fire should be hollow and people should be solid. Do more good things and don't do evil things.

3. A sage will lose something if he worries a lot; a fool will gain something if he worries a lot. Time flies like an arrow, and the sun and moon fly like a shuttle.

4. If you don’t know, ask; if you don’t know, learn; be quick and eager to learn; don’t be ashamed to ask; those who know others are wise; those who know themselves are wise.

5. Good things should not be lost, evil things should not be long-lasting, remember the good deeds of others, and forget the faults of others.

Need to know:

Four-character idiom calligraphy is the concentrated essence of Chinese culture. It incorporates the wisdom of the ancients and contains rich philosophical principles. It is not an exaggeration to say that every word is precious. .

Calligraphy is an art full of emotion. In every calligraphy work, we can deeply feel the sincerity of emotion. It is this spiritual influence that gives the work a hearty style.