Andrew Grove Quote
And try not to get too depressed in the part of the journey, because there's a professional responsibility. If you are depressed, you can't motivate your staff to extraordinary measures. So you have to keep your own spirits up even though you well understand that you don't know what you're doing.
Cited in: "Andy Grove Tells The Truth About What Great Leaders Do." bobsutton.typepad.com/my weblog. by Bob Sutton, March 11, 2007. - Harvard Business School Press conference, 2002