Time flies like a bird

如我們所知，時間有時候像鳥一樣飛過，有時像蟲一般緩慢爬行。而當人們完全沒注意到時間過得快或慢時，他們能感到無比的快樂。
As we all know, time sometimes flies like a bird, and sometimes crawls like a worm, but people may be unusually happy when they do not even notice whether time has passed quickly or slowly. --Ivan Turgenev 俄國現實主義小說家