In an old message dated July 12, 1981, John Piper said:
“What I have learned from about twenty-years of serious reading is this. It is sentences that change my life, not books. What changes my life is some new glimpse of truth, some powerful challenge, some resolution to a long-standing dilemma, and these usually come concentrated in a sentence or two. I do not remember 99% of what I read, but if the 1% of each book or article I do remember is a life-changing insight, then I don’t begrudge the 99%.”