http://www.johnmaxwell.com/blog/category/servanthood/
https://www.forbes.com/sites/tanyaprive/2012/12/19/top-10-qualities-that-make-a-great-leader/#1e3be2187754
https://www.forbes.com/sites/tanyaprive/2012/12/19/top-10-qualities-that-make-a-great-leader/#1e3be2187754