Quote by Dumbledore
"Never forget that failure is an essential part of learning."
More from Dumbledore
"It is our choices that show what we truly are, far more than our abilities."
"Happiness can be found even in the darkest of times, if one only remembers to turn on the light."
"It does not do to dwell on dreams and forget to live."
"The truth is a beautiful and terrible thing, and should therefore be treated with great caution."