I don't really eliminate body, but reduce it to what it is. For I show that corporeal mass, which is thought to have something over and above simple … - Gottfried Wilhelm Leibniz

For I hold that it is only when we can prove everything we assert that we understand perfectly the thing under consideration.

[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]

It is an extremely useful thing to have knowledge of the true origins of memorable discoveries, especially those that have been found not by accident but by dint of meditation. It is not so much that thereby history may attribute to each man his own discoveries and others should be encouraged to earn like commendation, as that the art of making discoveries should be extended by considering noteworthy examples of it.