One cannot put back the clock.
［译］人无法让时间倒流。
One crowded hour of glorious life is worth an age without a name.
［译］光辉人生中忙碌的一个小时抵得过碌碌无为的一生。
One today is worth two tomorrow.
［译］把握一个今天，胜似两个明天。
Only that which is honestly got is gain.
［译］正当的收入才是真正的收入。
Opportunity seldom knocks twice.
［注解］比喻机不可失，时不再来。
［译］机会很少敲两次门；机会难逢。
Ordinary people merely think how they shall spend their time; a man of talent tries to use it.
［译］普通人只想到如何度过时间，有才能的人设法利用时间。