I was recently reading something written by a contempory of Pythagoras. Remember we are talking 2500years ago;

"These writings ..... show no indication of a more complete knowledge .... they talk much, write little, know less and conceal their ignorance under a series of mystical hints and promises."
"This uncertainty, shared by all students of the subject proves conclusively that it is unwise to make definite statements founded on the indefinite and fragmentary information available".

Sound familliar?