The aphorisms about "don't take yourself too seriously" are as follows:

1. A gentleman doesn't flatter himself, and he doesn't reward himself.

Source: Book of Rites

Interpretation: Virtuous people never exaggerate their contributions and achievements.

2. Complacency, conceit and credulity are the three hidden rocks in life.

Source: Balzac's famous saying

3. The saddest person in the world is that he has no merits to show off, but he hides his poor inferiority complex with annoying arrogance and boasting.

Source: Dale Carnegie's The Weakness of Human Nature

4. No matter how great our achievements are, we should still soberly assess the enemy's strength, be vigilant, and never allow ourselves to be arrogant, complacent and negligent in our own ranks.

Source: Stalin's famous saying

5. A shallow and incompetent person is more conceited than anyone else, and he always regards himself as the greatest person in the world; Only the fruit with a little sweat hangs shriveled on the branches.

Source: Tibetan Proverb

6. The smaller you are, the easier it is to be self-righteous. The bigger you are, the more approachable you are, so those who think highly of themselves are often not great.

source: George Washington's famous saying

7. He who gives in to himself can get in the crowd, but he who is modest can get in the body.

source: Soviet proverb