当我们假定在误导实践和软弱意志背后的动机都是好的时候，我们就很容易去忽略和原谅他们的失败。
When we assume good motives behind misguided practices and weak wills, it is often easier to overlook and forgive their failures.
这也恰恰是在实践中使用它们的原因：研究者多年以来已经明白将完全不治疗跟某种治疗法做比较往往会产生误导的结果。
That is precisely the point of using it in trials: researchers have known for years that comparing treatment against no treatment at all will give a misleading result.
实践证明，把有意误导引入课堂，对于提高教学质量有着非常重要的作用。
It is verified practically that the introduction of misleading intentionally into class is very important in increasing teaching quality.
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