Rav Yisrael Lipkin of Salant

After resolving a difficulty in Rambam, R’ Yisrael fainted.  “If I have such talent,” R’ Yisrael explained upon coming to, “I have a tremendous responsibility.  The Heavenly Court will demand of me, “Why didn’t you get the whole world to do teshuvah?”

From Sparks of Mussar by R Chaim Ephraim Zaitchik