Thought

In fact, the effective time in our life is only about twenty years. Most of us before our thirties didn't know the preciousness of our time. We only know we should cherish time until after fifty, but by then our body already can not support our ambitions. So take big advantage of time to do what you want when you are still young because your time is limited, no matter how diligent you are, and the effective time for you in your whole life is only about twenty years.