* Love: Love is a feeling, an emotion, and not something tangible you can touch or see.
* Justice: Justice is a concept of fairness and righteousness, not a physical object.
* Freedom: Freedom is a state of being, not a concrete thing.
* Hope: Hope is an optimistic feeling about the future, not something with a physical form.
* Beauty: Beauty is a subjective perception of aesthetic qualities, not a definable object.
Let me know if you'd like more examples!