Famous aphorisms about correcting mistakes for the third grade include:

1. Self-criticism is as important to us as sunlight, air, and water. ——Stalin

2. In the revolutionary cause, recognizing one's shortcomings is equivalent to correcting more than half of them. ——Lenin

3. A person must use all his strength to improve himself and not waste his strength on anything else. ——"The Biography of Tolstoy"

4. A person is blessed if he knows his shortcomings and can change his ways. ——Shakespeare

5. Reflection is a mirror that can clearly show our mistakes and give us the opportunity to correct them. ——Heine

6. The best good people are those who have made mistakes; a person will often become better in the future because of a small shortcoming. ——Shakespeare

7. Everyone makes mistakes, but only fools will persist in their mistakes.

——Italy