Robin finds the MBTI most inspiring. Most of the time when doing a quiz he is an INFJ as the result.
He investigated on famous INFJs. If they were real humans, Lisa Simpson and Malcom Crowe, the protagonist of The Sixth Sense, would be INFJs.
Hitler was probably one, too. However, he had an anti-social personality disorder. (He was a psychopath, that is.)
Ayatollah Khomeini is also said to was one. He wrote poetry and published it. “My poems are better!” Robin is said to have said.
If you always wanted to find out the truth about yourselves – give it a go!