Heroes have gone out; quacks have come in; the reign of quacks has not ended with the nineteenth century. The sceptre is held with a firmer grasp; the empire has a wider boundary. We are all the slaves of quackery in one shape or another. Indeed, one portion of our being is always playing the successful quack to the other.
Thomas CarlyleHabit and imitation--there is nothing more perennial in us than these two. They are the source of all working, and all apprenticeship, of all practice, and all learning, in this world.
Thomas Carlyle