It's all true: Proust really can change your life. Consider this observation on habit and selfhood:
We constantly strive to give our life its form, but by copying, in spite of ourselves, like a drawing, the features of the person we are, not the person we should like to be.
From The Guermantes Way, translated by Mark Treharne (New York: Penguin, 2002), 181
Other posts on Proust and habit
"This is the operator speaking"
Involuntary memory, foolish things
All Proust posts (via del.icio.us)