Book, Paragraph

1  IV, 5 |      we made long ago; we must show them and persuade them that
2  IV, 6 |     Let this, then, suffice to show (1) that the most indisputable
3  VI, 1 |       same kind of thinking to show what it is and that it is.~
4 XIII, 2|     the objects of mathematics show that we are right. For the
5 XIV, 2 | eternal, as we had occasion to show in another context. If that
6 XIV, 3 |         But the observed facts show that nature is not a series