1380  Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.

1770  There is never enough time to do everything, but there is always enough time to do the most important thing.

1890  “I am so clever that sometimes I don't understand a single word of what I am saying.”

1307  An error can never become true however many times you repeat it. The truth can never be wrong, even if no one hears it.

1031  Sometimes you can't see yourself clearly until you see yourself through the eyes of others.