enthusiasm, zeal, fervor, earnestness

to be enthusiastic

earnest, enthusiastic

discuss / to argue, to dispute / to debate

discussion / dispute, argument / debate

teach; to instruct; give a lesson

instruction; teaching; school; lesson, class

philosophy

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend