These lesons were given by many people. From many differnt walks of life.

The lessons on happiness were given by Rabbi M.Hiller
The lessons on character flaws were given by Mrs. Goldy Greenwood
Advice on lesson of the day was given by Shoshana Rosenblum
The poem intitled "The Road Not Taken" is by Robert Frost
Self Respect was found on Aish.com by Dina Coppersmith