To keep a diary is to attempt a difficult literary form.

Its effectiveness is likely to derive from a special blend of honesty and appetite for life that gives the power to record everyday happenings while magically freeing them from banality and triviality.

Also, I knew that the impact of Motorcycle Diaries was going to be so resonant for all of us who went through the experience of making it that I didn't want to do anything that could reflect it.

Though my father was Norwegian, he always wrote his diaries in perfect English.