khôn ba năm, dại một giờ
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Meaning
2 senses
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A reminder that even intelligent people can make mistakes or poor decisions.
vi Thật đáng tiếc, đúng là khôn ba năm, dại một giờ.
en It's a pity; even intelligent people can make mistakes.
One moment of foolishness can ruin the efforts of a long time.
vi Đừng để khôn ba năm, dại một giờ làm hỏng sự nghiệp của mình.
en Don't let one moment of foolishness ruin your career.