"If the gentleman has ability, he is magnanimous, generous, tolerant, and straightforward, through which he opens the way to instruct others"

The quote recommends that if a male possesses ability, meaning he has skill or skill, he displays certain qualities such as being magnanimous (generous and forgiving), tolerant, and uncomplicated. These qualities allow him to efficiently teach and assist others. Essentially, the quote indicates that possessing ability is just important if it is accompanied by virtues that enable one to lead and coach others.