Failure is instructive. The person who really thinks learns quite as much from his failures as from his successes. John Dewey
Nothing is less instructive than a machine. Simone Weil
Children also have artistic ability, and there is wisdom in there having it! The more helpless they are, the more instructive are the examples they furnish us; and they must be preserved free of corruption from an early age. Paul Klee
The great book for you is the book that has the most to say to you at the moment when you are reading. I do not mean the book that is most instructive, but the book that feeds your spirit. And that depends on your age, your experience, your psychological and spiritual need. Robertson Davies
Bad company is as instructive as licentiousness. One makes up for the loss of one's innocence with the loss of one's prejudices. Denis Diderot
