S1 문장의 [______]에 들어갈 단어는?

난이도 필수 · 힌트를 덜 열수록 높은 점수 (현재 5점)
The [______] for knowledge in the material world is a never-ending pursuit, but the quest does not mean that a thoroughly schooled person is an educated person or that an educated person is a wise person.