an ounce of prevention is worth a pound of cure
预防胜于治疗
口语·书面语·表示预防的重要性
英文释义
It is better to take precautions in advance to prevent a problem, rather than trying to resolve it later.
例句
I always wear sunscreen — an ounce of prevention is worth a pound of cure.
典故来源
源自本杰明·富兰克林在1736年《穷理查年鉴》中的谚语，强调预防比事后补救更有效。