You see things; and you say, 'Why?' But I dream things that never were; and I say, 'Why not?'
事实是,我们都在试图弄清楚如何生活。
解释:看到兔子再回头唤猎狗,还不算太晚;跑掉了羊再去修补羊圈,也不算太迟。