<p>The Catholic religious orders all adhere to the teachings and doctine of the Catholic Church. Where they differ is in what types of work (colleges, parishes, hospitals, missions, retreat houses, monasteries, etc) they primarily emphasize although many do a wide variety. The Jesuits are primarily known for running universities and colleges and are the largest in number of all the male religious orders by far. They operate 28 different colleges in the USA alone (complete list here: [Jesuit</a> Colleges and Universities Quiz Results - sporcle](<a href=“http://www.sporcle.com/games/jesuit_colleges_results.php]Jesuit”>http://www.sporcle.com/games/jesuit_colleges_results.php)) and many elsewhere throughout the world. The top ranked Catholic colleges operate in a very secular fashion. They offer Catholic religious services to students who are interested but they are not pushed onto students and many are of other faiths or no faith at all who attend these colleges.</p>