"Remember: every sect in the world feeds off the Catholic Church. Our Holy Catholic Church is like a great and extremely precious, unpolished diamond from which, every so often, somebody takes a particle and polishes it, not without the help of the Evil One, so that it begins to shine better than the great unpolished diamond.
And this shine draws men, dazzles them and deceives them, so that the particle necessarily is worn out and comes to nothing. This is the game of deception which appears and reappears with time. Jesus warned us to watch out for it."
Saint Padre Pio of Pietrelcina