Verification of truth — What mentality necessarily includes Mentality always has ________.

Introduction / Context:
“Mentality” refers to the way a mind perceives and thinks. The task is to choose the element inseparable from mentality.

Concept / Approach:
Perception (awareness) underlies mentality; the other terms are contingent traits or emotional states.

Step-by-Step Solution:
Perception/vision (figuratively: mental seeing) is integral to mentality.Cruelty, indifference, or impulses may occur but are not inherently present.

Final Answer:
Perception vision