Where does "a good scholar is wise, a good thinker is wise, a good doer is far away, and a good leader" come from? What do you mean?
People who are good at learning have more knowledge, people who are good at thinking will be smarter, people who are good at walking will go further, and people who are good at leading others will support him more.
The specific source can't be verified, which is the mantra passed down by the ancients.