Complex sentence: James addresses objection (1) in a footnote of his "The Will to Believe" essay where he argues that for a chemist to devote years of his life to verifying a hypothesis, the chemist must also believe his hypothesis.
Split into simpler sentences: James addresses objection (1) in a footnote of his "The Will to Believe" essay. In it, James argues that for a chemist to devote years of his life to verifying a hypothesis, the chemist must also believe his hypothesis.