Complex sentence: Even though Ben disagrees with Diane's politics he returns to her one on one tutitions in the hope of meeting Phoebe once more, in their lessons Diane teaches him to view science objectively and about manipulation of scientific fact.
Split into simpler sentences: Even though Ben disagrees with Diane's politics he returns to her one on one tutorials in the hope of meeting Phoebe once more. In their lessons Diane teaches him to view science objectively, and about manipulation of scientific fact.