“History is a better guide than good intentions.”
“the smallest good deed is better than the grandest good intention”
“In history, good intentions do not always make good consequences”
“There is no better guide to this world than oblivion.”
“Dashed hopes and good intentions. Good, better, best, bested.”
“There are periods of history when the visions of madmen and dope fiends are a better guide to reality than the common-sense interpretation of data available to the so-called normal mind. This is one such period, if you haven't noticed already.”