To save time is to lengthen life.

节约时间就是延长生命。

Time is life. To save time is to lengthen life.

时间是生命，节省时间就是延长生命。

To save time, that is, make a person's limited life, more effective, but also is to lengthen life.

节约时间，也就是使一个人的有限的生命，更加有效，而也就等于延长了人的寿命。