Only by contending with challenges that seem to be beyond your strength to handle at the moment you can grow more surely toward the stars.

Failure is a prerequisite for great success. If you want to succeed faster, double your rate of failure.

Your persistence is your belief in yourself.

Develop wisdom in sales by reflecting on your experience, and learning everything you can from every call.

Every great success is an accumulation of thousands of ordinary efforts that no one else sees or appreciates.

We cannot get what we've never had, unless we're willing to do what we've never done.

Knowledge and know-how are the real sources of value and riches. You can learn anything you need to learn to achieve any goal you can set for yourself.