让人冷落亲情的学问

英文原文

If the study to which you apply yourself has a tendency to weaken your affections, and to destroy your taste for those simple pleasures in which no alloy can possibly mix, then that study is certainly unlawful, that is to say, not befitting the human mind.

中文译文

如果你所投身的研究会削弱你的感情，毁掉你对那些不掺任何杂质的简单乐趣的兴致，那么这种研究必定是不正当的，也就是说，不适合人的心灵。