break one's promise
break one's word
Deviate from morality
betray
Break one's word to sb
Ungrateful and dishonest
Say that there is no morality, break your word.
Speak rashly and lack credit.
Dismantle the bridge immediately after crossing the river
be ungrateful
cold
forget all moral principles at the sight of profit
Famous sayings about dishonesty
Breaking a promise is failure. French writer Zola
When you are happy, your words are broken; when you are angry, your words are rude. Chen Jiru, a writer and painter in Ming Dynasty.
If you slip, you may get up again immediately; If you break your promise, you may never get it back. Franklin, American scientist
Don't be expensive and cheap, don't use your own views to go against the public, and don't use your own functions to break your promises. Zhuge Liang
Self-confidence may not make you successful, but losing self-confidence will definitely make you fail. anonymous
The sky is broken, and the three lights are unknown; Break your word, you can't do it at four o'clock; People break their promises, and the five virtues are not good.