The problems of the poor best be solved by the wealthy becoming an "agent" and "trustee" for the poor, and sharing their wisdom, experience, and help in order to help them improve.
The wealthy could set an example and giving the poor wants and goals in their lives, therefore, influencing them to work harder in order to achieve these goals.
In addition, the wealthy could also consider their surplus earnings as "trust funds", to help the poor in a way they believe will be beneficial.
Therefore, according to Carnegie, the wealthy can take an active role in improving the lives of the poor through example, wisdom, experience, and funded help.