Cá không ăn muối cá ươn, con cãi cha mẹ trăm đường con hư

“A fish without salt turns rotten; a child who defies father and mother turns bad in every way.”

Just as salt preserves fish, respect for parents' guidance preserves a child's good character.

— Traditional Vietnam Wisdom, Vietnam

Source: Traditional Vietnamese folk verse (ca dao), public-domain oral tradition