Great men are seldom over-scrupulous in the arrangement of their attire. (“The Pickwick Papers”)
Difficulty, my brethren, is the nurse of greatness – a harsh nurse, who roughly rocks her foster-children into strength and athletic proportion.
A vandal is somebody who throws a brick through a window. An artist is somebody who paints a picture on that window. A great artist is somebody who paints a picture on the window and then throws a brick through it.