The Spirit of Sigma Chi, as conceived by the Founders more than 140 years ago yet visible and alive today, is based on the theory that:

 "friendship among members, sharing a common belief in an ideal, and possessing different temperaments, talents, and convictions, is superior to friendship among members having the same temperaments, talents, and convictions; and that genuine friendship can be maintained without surrendering the principle of individuality or sacrificing one's personal judgment."