The whole letter, written on parchment, is still preserved in the archives of the monarchy.
"The foundation of all virtue," he wrote, "is the fear of God and the love of man.

O my dear children, praise God and love your fellow-men.
It is not fasting, it is not solitude, it is not a monastic life which will secure for you the divine approval--it is doing good to your fellow-creatures alone.

Never forget the poor.

Take care of them, and ever remember that your wealth comes from God, and that it is only intrusted to you for a short time.

Do not hoard up your riches; that is contrary to the precepts of the Saviour.