Complex sentence: As a student in Perth he was a socialist, but while studying at the London School of Economics he became converted to the economic views of John Maynard Keynes, and he spent the rest of his career pursuing Keynesian solutions to Australia's economic problems.
Split into simpler sentences: As a student in Perth, he was a socialist, but while he was studying at the London School of Economics, he became converted to the economic views of John Maynard Keynes. He spent the rest of his career pursuing Keynesian solutions to Australia's economic problems.