Pros and cons to competitiveness

Lance Armstrong's three axioms:
1. Evaluate everything on a binary scale.
2. Attack rather than defend.
3. Block out the negative.

While these principles make Armstrong a fearsome competitor, they make him an exceedingly difficult human being. Armstrong divides the world into friends and enemies, and while he is brutal toward his enemies (a trait many Americans saw for the first time when, in a meaningless stage of the Tour de France, Armstrong vindictively chased down an Italian rider who was suing Armstrong for defamation), he can be even nastier to his friends."
The complete review of "Lance Armstrong's War".