Quote by Cosimo de Medici
"Gratitude is the healthiest of all human emotions."
More from Cosimo de Medici
"I have not the least doubt that I shall astonish you all."
"Money is only a tool. It will take you wherever you wish, but it will not replace you as the driver."
"Without knowledge, life is not much more than the life of an animal."
"We read that we ought to forgive our enemies; but we do not read that we ought to forgive our friends."