A number is called perfect if it is precisely equal to the sum of all the numbers that divide it exactly (excluding the number itself). In this sense, it's neither too large nor too small; it's just "perfect."
Lincoln, self-educated, a versatile and critical thinker, questioned prevailing assumptions of his day, and, in his search for truth, drew upon mathematical axioms as a storehouse of principles he might apply to his political philosophy.
The release of Steven Spielberg's Lincoln may have been intentionally delayed until after the presidential election. However its debut has unintentionally arrived in time to impact an event of equal political importance.