I was generally busy from 7 ...

I was generally busy from 7 A.M. until midnight. I never had time to sit and think. As I worked, physical and mental fatigue set in and I was unable to operate to the maximum of my intellectual ability. But in a single cell in prison, I had time to think. I had a clear view of my past and present, and I found that my past left much to be desired, both in regard to my relations with other humans and in developing personal worth.
I was generally busy from 7 A.M. until midnight. I never had time to sit and think. As I worked, physical and mental fatigue set in and I was unable to operate to the maximum of my intellectual ability. But in a single cell in prison, I had time to think. I had a clear view of my past and present, and I found that my past left much to be desired, both in regard to my relations with other humans and in developing personal worth.

Quotes from the same author

As we are liberated from our own fear, our presence automatically liberates others.
It always seems impossible until it's done.
There is nothing like returning to a place that remains unchanged to find the ways in which you yourself have altered.
And as we let our own light shine, we unconsciously give other people permission to do the same.
A good head and a good heart are always a formidable combination.