I got this from Print, 1991and it says “The virtue of a designer is Patience.  This quality enables him to calmly tolerate delay and confusion without complaining.  Diligence also permits the designer to face trouble or inconvenience in order to put himself in the ideal state of mind to invent, create, and conceptualize.  Moreover, the careful and hardworking designer can express his thoughts on paper, for not only his ability to draw due talent but patient.