What ability is key to reaching higher levels of moral thinking?

The ability to abstract

Explanation:

When a person has the ability to abstract i.e has the ability to think about any thing, situation, condition etc. from the perspective of others person's mind, then he/she can reach a higher levels of moral thinking.

Abstract thinking allows a person to visualize things beyond the most obvious facts so that he /she can arrive at the best possible solution to a problem or make any judgement

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