"More and more it seems to me that the philosopher, being of
necessity a man of tomorrow and the day after tomorrow, has always found
himself, and had to find himself, in contradiction to his today; his
enemy was ever the ideal of today.
So far all these extraordinary
furtherers of man whom one calls philosophers, though they themselves
have rarely felt like friends of wisdom but rather like disagreeable
fools and dangerous question marks, have found thei
r
task, their hard, unwanted, inescapable task, but eventually also the
greatness of their task, in being the bad conscience of their time."
— Friedrich Nietzsche, Beyond Good and Evil, 212