To stay on the LONG path of progress you've got to hold (and harmonize) competing ideas at once. This is so important.
Stress AND rest
Seriousness AND fun
Self discipline AND self-compassion
Solitude AND community
Success AND failure
Caring deeply about goals AND non-attachment
Had written a coaching book in 1977 it would be different than I would write today. 44 yrs experiences but deeper understanding of the process & the human element. 44 years ago it was about technique & training today its about communication, relationships & coaching the person.