"I think that if you went in for the Tripos, merely re-reading Economics in the ten days before it, you would probably get a first class: & that if you did not, you wd not injure your position, since it wd.. be known that you had had very little time free for economics."
January 1, 1970
https://en.wikiquote.org/wiki/John_Maynard_Keynes