What are the sentences that imply that you can't do it?

1. People who break their promises can't be respected by others, especially men.

A person should keep his promise, not break his word, but keep his word, so as to gain the trust of others.

He speaks with a spear, which contradicts himself. I don't know what the conclusion is.

4. A giant who speaks, a dwarf who acts.

5, just say that you don't practice fake tricks.

6. Speaking is better than singing.

7. If you can't keep your promise, it will only lower your position in the eyes of others, your image may be greatly discounted, and your credibility may be gone. Disappointing at the same time, you may also attract criticism and bad reviews, which will lead others to despise you, abandon you or revile you.

8, a promise is a promise, a promise is a promise. This is the foundation of mankind. If you don't have the commitment of faith, you won't be trusted by others.