The most important and valuable resource in the world is time. It is limited and non-refundable. You can never take back the time you lost. Time spent productively is valuable. Every second, every minute, every hour dedicated to something that could improve your status whether that is physically, mentally or financially... expect something good to come out of something you made time for. You have to choose wisely where to spend your time because making this choice, you will be trading an opportunity for another. If you decided to spend this time lounging around instead of dedicating your time to improving yourself then you are losing the chance to be a better version of yourself.
Time spent on a specific work will or should result in a good or decent amount of money in exchange.
Exactly, time is the most important thing in the world, time tick every second and wait for no one. A wise man said "no more wasting time, thinking about the wasted time, there is no time to even check time, because everything has become short time". It move very fast more than you can imagine, but if you are wise and smart enough you will be able to achieve something great within this short period of time that will even pass your imagination. Hard work, dedication, patience, loyalty and commitment is the key to success.