狗看不到发生的事情。重要的是它们现在没有发生。在这方面，他们有一些教会我们的东西：我们经常觉得当时是现在，这导致我们将昨天的痛苦延长到今天的苦难中。狗不这样做。
(A dog sees no point in dwelling on things that have happened; the important thing is that they are not happening now. In that respect, they have something to teach us: we so often feel that then is now, and this leads us to prolong the suffering of yesterday into the suffering of today. Dogs do not do that.)