"A tailor needs a torn garment to practice his expertise. The trunks of trees must be cut and cut again, so they can be used for fine carpentry. Your doctor must have a broken leg to mend.
Your defects are each opportunities for glory to be manifested. Whoever sees clearly what is diseased in himself begins to gallop on the way. There is nothing worse than thinking you are well enough. More than anything, self-complacency blocks the workmanship."