Everyone always thought that all the goods of nature were inexhaustible, but time is the proof that everything has an end. So time is the most precious thing we have on the planet.
So I worry so much about time management, spending time with useful things. Tomorrow may end, all of a sudden. I think like this: do everything you can do on this day, be useful for life! If you do not know what you’re doing here, you waste your time doing useless things.