Belief That the Self Is All That Exists
This page is the CodyCross answer for the clue below from Prehistory, Group 1248, Puzzle 5 (Estemmenosuchus).
Question is: Belief That the Self Is All That Exists
and the answer is: SOLIPSISM
Word Meaning:
SOLIPSISM — (philosophy) The idea that the self is all that exists or that can be proven to exist.
Definitions from Wiktionary.