《沉思录·卷七·痛苦与忍受》第27条
Think not so much of what thou hast not as of what thou hast: but of the things which thou hast select the best, and then reflect how eagerly they would have been sought, if thou hadst them not. At the same time, however, take care that thou dost not through being so pleased with them accustom thyself to overvalue them, so as to be disturbed if ever thou shouldst not have them.
注释摘要
奥勒留在这里做的是一个认知练习，步骤清晰得像操演兵器。第一步是转向：不去想我没有的，去想我有的。这一步本身并不新鲜，但他紧接着走的第二步才显出斯多葛派的克制。从自己所拥有的东西里选出最好的那一类，然后想象如果此刻没有它们，自己会怎样渴望。这不是简单的感恩清单，而是一种有意制造的心理落差——先通过假设性的匮乏来激发珍惜，再把这种珍惜引回当下，让自己真实地感受…