Time is the coin of your life. It is the only coin you have, and only you can determine how it will be spent. Be careful lest you let other people spend it for you.

This quote means that time is valuable and it should be treated as a precious resource. You only have a limited amount of time in your life and you have total control over how you spend it. You should not let other people control or decide how your time is spent because it is your own life, and it is up to you to decide how to use your time.