If there was nothing wrong in the world there wouldn't be anything for us to do.
A life spent making mistakes is not only more honourable, but more useful than a life spent doing nothing.
Some men see things as they are and ask why. Others dream of things that never were and ask why not.
Success does not consist in never making mistakes but in never making the same one a second time.
Beauty is all very well at first sight; but who ever looks at it when it has been in the house three days?