| gut |
| hub(noun, emotion, mood, temperament, core) |
| humanity(noun, emotion, mood, temperament, core) |
| inclination(noun, emotion, mood, temperament, core) |
| inmost |
| inmost convictions |
| inner |
| kernel(noun, emotion, mood, temperament, core) |
| marrow(noun, emotion, mood, temperament, core) |
| mettle(noun, emotion, mood, temperament, core) |
| middle(noun, emotion, mood, temperament, core) |
| mind(noun, emotion, mood, temperament, core) |
| mood(noun, emotion, temperament, core, sentiment) |
| moxie(noun, emotion, mood, temperament, core) |
| nerve(noun, emotion, mood, temperament, core) |
| nitty-gritty(noun, emotion, mood, temperament, core) |
| nub(noun, emotion, mood, temperament, core) |
| nucleus(noun, emotion, mood, temperament, core) |
| palate(noun, emotion, mood, temperament, core) |
| pith(noun, emotion, mood, temperament, core) |