He who hasn't tasted bitter things hasn't earned sweet things. - Gottfried Wilhelm Leibniz

[Was gibt es besseres für uns, als] wenn wir uns pflichtgemäß an den Urheber des Alls anschließen, an ihn, nicht nur als den Baumeister der Welt und Urgrund unseres Daseins, sondern als unsern Herrn und Endzweck, der das Ziel unseres Wollens bleiben soll und der einzige Urheber unsrer Glückseligkeit. [Absatz 90]

quando orientur controversiae, non magis disputatione opus erit inter duos philosophos, quam inter duos computistas. Sufficiet enim calamos in manus sumere sedereque ad abacos, et sibi mutuo (accito si placet amico) dicere: calculemus

And just as the same town, when looked at from different sides, appears quite different and is, as it were, multiplied in perspective, so also it happens that because of the infinite number of simple substances, it is as if there were as many different universes, which are however but different perspective representations of a single universe form the different point of view of each monad.