1911  Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.

1504  The greatest way to live with honor in this world is to be what we pretend to be.

613  Your most unhappy customers are your greatest source of learning

1471  The least of things with a meaning is worth more in life than the greatest of things without it.

1365  Nothing has a stronger influence psychologically on their environment and especially on their children than the unlived life of the parent.