2.Opportunity knocks at the door but once. 机不可失，失不再来

3.Time and tide waits for no man. 岁月不待人

4.Fools look to tomorrow, and wise men use tonight. 愚人指望明天，智者利用今晚

5.Time is money; time is life. 时间就是金钱，时间就是生命

6.Early birds catch the worms. 早起的鸟儿有虫吃

7.Busiest men find the most time. 最忙碌的人找得出最多的时间

8.All time is no time when it is past. 光阴一去不复返

9.An hour in the morning is worth two in the evening. 一日之计在于晨

10. Christmas comes but once a year. 佳节良辰，机会难得