【大意】等到大寒节气到来时，冰霜寒雪从天而降，然后才能知道只有松柏能经得住严寒考验，依然繁茂。

痛苦是不可避免的，但受苦是可以选择的。

格瓦拉第二次漫游南美前对母亲说

I think people believe in heaven because they don’t like the idea of dying, because they want to carry on living and they don’t like the idea that other people will move into their house and put their things into the rubbish.