"Once we are destined to live out our lives in the prison of our mind, our duty is to furnish it well"

This quote by Peter Ustinov talks to the idea that we are all restricted to our own minds, which our lives are determined by our ideas and beliefs. We are all prisoners of our own minds, and it is our responsibility to maximize it. We need to put in the time to cultivate our thoughts and beliefs, and to ensure that our minds are filled with favorable and efficient ideas. We should make every effort to produce a positive and productive environment within our minds, and to ensure that our ideas are focused on what is useful to us. We need to likewise put in the time to learn and grow, and to challenge ourselves to believe outside of the box. By doing this, we can develop a prison of our minds that is filled with favorable and productive ideas, and that can assist us to reach our full potential.