“If you feel safe in the area that you’re working in, you’re not working in the right area. Always go a little further into the water than you feel you’re capable of being in. Go a little bit out of your depth, and when you don’t feel that your feet are quite touching the bottom you’re just about in the right place to do something exciting.”
Not specifically about design, but the similarity’s there.
On a tangent, the Royal Mail is releasing David Bowie stamps showing vinyl album covers as a tribute to the late artist.