Billie Eilish Take on Descartes' Quote, __ I Am

This page is the CodyCross answer for the clue below from Prehistory, Group 1255, Puzzle 4 (Fruits and Nuts).

Question is: Billie Eilish Take on Descartes' Quote, __ I Am

and the answer is: THEREFORE

Word Meaning:

THEREFORE — (conjunctive) Consequently, by or in consequence of that or this cause; referring to something previously stated.

Definitions from Wiktionary.