chó cứ sủa còn đoàn người cứ đi

Alternative forms
Chó sủa mặc chó, lữ hành cứ đi

Etymology
The saying is found in many languages from the Middle East to India. In Turkish and Azerbaijani, it rhymes (🇨🇬, and 🇨🇬), suggesting that of Turkic languages may be the origin. Some scholars claim that the proverb is originally Arabic. The saying is also found in Portuguese (🇨🇬), which could be explained by Arab presence in the country between 8th and 13th centuries.

Proverb

 * 1) the dogs bark, but the caravan goes on