I've used the prestige and influence of having been a president of the United States as effectively as possible. And secondly I've still been able to carry out my commitments to peace and human rights and environmental quality and freedom and democracy and so forth.
Two qualities are indispensable: first an intellect that even in the darkest hour retains some glimmerings of the inner light which leads to truth and second the courage to follow this faint light wherever it may lead.