What is the difference between a will and a testament?

A will is simply a legal instruction about the disposition of an estate. A testament is a final statement, which may be philosophical rather than legal in nature. It is my last wish that my two sons, Larry and Harry, will finally stop fighting with each other and will accept each other as brothers and friends in a dangerous world. A house divided against itself will not stand. Do not weep for me, my life was a long and a productive one, and I am going to a better place. Farewell.