What Is Is What Must Be.

Justice Is Charity In Accordance With Wisdom.

Indeed Every Monad Must Be Different From Every Other. For There Are Never In Nature Two Beings, Which Are Precisely Alike, And In Which It Is Not Possible To Find Some Difference Which Is Internal, Or Based On Some Intrinsic Quality.

Now, As There Is An Infinity Of Possible Universes In The Ideas Of God, And As Only One Of Them Can Exist, There Must Be A Sufficient Reason For God's Choice, Which Determines Him Toward One Rather Than Another. And This Reason Can Be Found Only In The Fitness, Or The Degrees Of Perfection, That These Worlds Contain, Since Each Possible Thing Has The Right To Claim Existence In Proportion To The Perfection It Involves.

Nothing Is Necessitated Whose Opposite Is Possible.

Everything That Is Possible Demands To Exist.