A great life is not easy to build. A hut may take a day to build; but not a mansion. A dollar may be easy to earn; but not a million dollars.
Things of value are not easy to come by. You have to work hard for them.
You must persist to reach the winning point in a marathon. How can you ever bag a PhD, if you have not read for long hours? You cannot master a discipline if you have not taken time to study it.
If you have a big goal to achieve, get ready for many blisters. Big goals are difficult to achieve; and call for hard work; persistence, or stay-on power. The challenges are enormous; but if you work hard, and persist, the result will be joy.
A great life takes time to build.