So goes the saying. But sadly, it's going to be a new era of cheating. To me, it's clear Sky/Porte/Froome are "flaming positive", but even on the 1% chance they are clean, it's clear the other riders and teams are WAY behind Sky, whatever they are doing. It's pretty clear to me as Chris Froome ascends to be the next LA, most of the other GC contenders and teams will be trying to find their own "methods" in an attempt to at least make the race a race. These guys can't continue to take 2-3 minute beatings on "easy" mountain stages without something to give them a boost. Otherwise they will continue to be a laughing stock to Sky and the three best stage racers in the game (so it seems).
Races like the 2011 Tour and 2012 Giro with winners who actually looked like humans and could suffer are a thing of the past, I'm afraid. It's a new era alright.