I am defeated, and know it, if I meet any human being from whom I find myself unable to learn anything. 

“Aku kalah, dan aku tahu itu, jika saya bertemu manusia yang tidak bisa aku dapatkan pelajaran darinya.”

"Get over the idea that only children should spend their time in study.  Be a student so long as you still have something to learn, and this will mean all your life."