An English proverb says that time is money.
I consider it/this wrong. Why?
Because we all know that we can earn money by work but can not get back time in any way.
For this reason, we may/can say that time is more valuable than money.
Many people do not know the value of time. It/this is indeed a great pity.
We must bear/keep in mind that wasting time is equal to wasting your life.