The rich because he started by working hard, trying hard and working smart to gain wealth.
People who work hard a lot. People who try so hard. But why are not many rich? Because they are less intelligent.
Smart because they have a lot of knowledge, because they read a lot, listen, see and try to improve their knowledge and skill. They continue to add, improve and learn new things. They can do it because they are practicing their knowledge and done repeatedly though sometimes experience errors and repeated failures until they really master and become experts.
The rich continue to grow richer because with his knowledge and intelligence he knows how to turn his money into investing to make more money without having to work hard again.
So rich people who continue to grow richer begin to learn hard, work hard, work hard and work smart, work smart, work thoroughly and do not stop learning, keep learning, keep looking for new ideas that can add wealth.
How about you, do you want to be rich and get richer?