Leibniz theorized that G-d, having the ability to pick from an infinite number of worlds, chose this world, "the best of all possible worlds. (http://www-personal.umich.edu/leibniz.htm)" Although Voltaire chose that simple quality of Leibniz's philosophy to satirize, Leibniz meant a little more than just that. Even though his philosophy stated that G-d chose "the best of all possible worlds," he also meant that G-d, being the perfection he is, chose the best world available to him; unfortunately it was a world containing evil (http://friesian.com/leibniz.htm). It seems that Voltaire wanted to ridicule Leibniz's philosophy so much that he chose to satirize only the literal meaning and fatal acceptance of evil of Leibniz's philosophy (http://www.ericjonas.com/features/candide/optimism/default.asp).
To get his point across in Candide, Voltaire created the character Dr. Pangloss, an unconditional follower of Leibniz's philosophy. Voltaire shows this early in the novella by stating, "He proved admirably that there is no effect without a