Hohenheim is a straightforward speaking person, choosing not to mince words, making him very unpopular with most people. Despite his arrogance, he is a strikingly intelligent person, contributing further to his unpopularity as he chooses to knowingly place himself above others in many discussions. Despite his apparent callousness, he carries a deep grief relating to his past at Lobotomy Corporation. He would repress his sadness, having convinced himself that it was the logical thing to do.