A truly successful entrepreneur to be in addition to developing his business, he should try to improve himself at all times.
Looking at the best entrepreneurs in the world, they are always trying to learn new knowledge and skills to upgrade themselves. This is the best way to stay competitive and move the business forward.
Instead of just investing in the back of the business, also needs to invest back to the person who running the business.
The better the entrepreneur himself, the better his business will be.