As the taxi came to a screeching halt at a traffic light, I asked the driver, "Do you agree that 'Time is money'?"

"Well, it's a very common saying. Who will care so much about that?" the driver answered.

"Look, the digits in the meter（计时器） are still running when the car has stopped, "I pointed at the meter.

"Oh, yes. You've got a point here. In this case, time is money for both of us." added the driver.