He returned to Columbia University and, shortly after this, he had his first bout of an illness which was to recur throughout his career and limit what he might have achieved.
Ibabalik siya sa Columbia University at, sa ilang sandali lamang matapos na ito, niya ang kanyang unang labanan ng isang sakit na kung saan ay upang magbalik sa kabuuan ng kanyang karera at mga limitasyon sa kung ano siya maaaring magkaroon ng makakamtan.