Psychotherapist Anthony de Mello puts the responsibility squarely where it belongs: "It's an illusion that external events have the power to hurt you, that other people have the power to hurt you. They don't. It's you who gives this power to them."
or, how about:
"Painting isn't a question of sensibility; it's a matter of seizing the power, taking over from nature, not expecting her to supply you with information and good advice." (Pablo Picasso)