"To say that one practices zazen in order to become an enlightened person is like saying one practices medicine to become a doctor"

--- Thomas P. Kasulis, in Zen Action, Zen Person (1989), summarizing Dōgen:

In short, Dōgen rejects the view that zazen is a technique by which one comes to realization. Zazen is not the cause of satori; even at that first moment when the student begins to sit in meditation, zazen is already realization. Thus, in referring to enlightenment, Dōgen usually prefers to use the character shō (“authentication”) rather than satori (“realization”) or kaku (“awakening”). For Dōgen, proper sitting authenticates the enlightenment already there. Conversely, the student never reaches the point at which zazen is superseded. To say that one practices zazen in order to become an enlightened person is like saying one practices medicine to become a doctor. To practice medicine is to be a doctor. To practice zazen is to be enlightened. Enlightenment is not a static state of achievement; it is the active undertaking of the way exemplified in zazen.

"a man who is afraid of sinning because of Hell-fire, is afraid, not of sinning, but of burning"

--- Augustine of Hippo, Epistolae 145, 4; quoted in Peter Brown, Augustine of Hippo (1967, 2000) p. 375

Context in Brown: "It is Pelagius, not Augustine, who harps on the terrors of the Last Judgment: to which Augustine simply remarked that ‘a man who is afraid of sinning because of Hell-fire, is afraid, not of sinning, but of burning.’"