Have enough sense to know, ahead of time, when your skills will not extend to wallpapering.
Marilyn vos Savant
(I should paste this to the top of my toolbox!)
Originality is the fine art of remembering what you hear but forgetting where you heard it.
Laurence J. Peters.
And an observation:
Did you ever notice when you blow in a dog's face he gets mad at you? But when you take him in a car he sticks his head out of the window.