Whenever I may be tempted to ...

Whenever I may be tempted to slack up and let the business run for awhile on its own impetus, I picture my competitor sitting at a desk in his opposition house, thinking and thinking with the most devilish intensity and clearness, and I ask myself what I can do to be prepared for his next brilliant move.
 Harry Gordon Selfridge

Quotes from the same author

The boss inspires fear; the leader inspires enthusiasm. The boss says 'I'; The leader says 'We'.
 Harry Gordon Selfridge