Related:

• Do you know that doing your best is not good enough?
  First you must know what to do. -- manufacturing-quality theorist W. Edwards Deming...
• Do you know that disease and death must needs overtake us, no matter what we are doing?
  What do you wish to be doing when it overtakes you?...
• When you do not know what you are doing, do it neatly.
• Freedom is doing what you like, happiness is liking what you do.
• If you want enemies, excel others; if you want friends let others excel you. -- Colto
• If at first you DO succeed, pretend you know what you're doing.
• If you seem to know what you are doing, you'll be given more to do.
• When you don't know what you are doing, do it neatly.