Who said “Failure to prepare is preparing to fail.”?

“You can never plan the future by the past.”

“Magnificently unprepared for the long littleness of life.”

“Many things difficult to design prove easy to performance.”

“It is a mistake to look too far ahead. Only one link in the chain of destiny can be handled at a time.”

“To have his path made clear for him is the aspiration of every human being in our beclouded and tempestuous existence.”

“Young people need models, not critics...”

“Failure is not fatal, but failure to change might be.”

“You can't live a perfect day without doing something for someone who will never be able to repay you.”

“Be prepared and be honest.”

“Nothing will work unless you do.”

“Don't mistake activity for achievement.”