Without cancer, I never would have won a single Tour de France. Cancer taught me a plan for more purposeful living, and that in turn taught me how to train and to win more purposefully. It taught me that pain has a reason, and that sometimes the experience of losing things — whether health or a car or an old sense of self — has its own value in the scheme of life. Pain and loss are great enhancers.

As quoted in Forbes Magazine (3 December 2001).