Time

The older we are, the more we feel that we don't have enough time. How much do we need? We'd better ask ourselves how much we want to do in our lifetime. Except working for earning a living, don't we need to do a little more? Depending on our luck, we may be able to achieve what we really want in our lives. But it surely takes time. Time is limited. We have to do it in time. Good luck!