| fundamental(noun, adjective, significant, essential, basic) |
| fundamentals(noun, quality, character, spirit, significance) |
| germ(noun, nature, quality, character, spirit) |
| good(noun, logic) |
| grain(noun, nature, quality, character, spirit) |
| heart(noun, quality, type, kind, character) |
| incumbent on(expression, adjective, significant, essential, basic) |
| individualism(noun, quality, type, kind, character) |
| individuality(noun, quality, type, kind, character) |
| interest(noun, reason) |
| kernel(noun, quality, character, spirit, significance) |
| life(noun, nature, quality, character, spirit) |
| lifeblood(noun, nature, quality, character, spirit) |
| like(noun, quality, type, kind, character) |
| main idea(noun, expression, quality, character, spirit) |
| makeup(noun, quality, type, kind, character) |
| mandatory(adjective, significant, essential, basic, vital) |
| marrow(noun, quality, character, spirit, significance) |
| meaning(noun, quality, character, spirit, significance) |
| meat(noun, quality, type, kind, character) |