This chapter studies the logic of traditional innovation by investigating a form of sanctioned Catholic practice. In the eighteenth century, a new movement flourished in many of the most important cities and towns of New Spain. Calling themselves Holy Schools of Christ, these groups combined collective piety sometimes associated with baroque Catholicism, such as the lashing of flesh, with an intense demand for self-regulation of an individual's thoughts and actions. The participants in the Holy Schools might appear as surprisingly modern in their attitude toward controlling the future and their attempts to achieve individual or collective improvement. Yet to characterize this movement as a moment of hybrid modernity in which elements of the past persisted despite a turn toward the modern would be deeply misleading. For the members and supporters of the Holy Schools, innovation required tradition. Individuals of this period, in other words, were often future-oriented without being modern.