Book, Paragraph

 1      I,  3 |      statement that if a thing exists, then it does exist-an easy
 2     II,  1 | connexion, (3) whether a thing exists, (4) What is the nature
 3     II,  2 |      whether the moon or night exists, the question concerns the
 4     II,  7 |        must know also that man exists; for no one knows the nature
 5     II,  7 |      can it also prove that it exists? And how will it prove them
 6     II,  7 |       is and the fact that man exists are not the same thing?
 7     II,  7 |     without knowing whether it exists. But that is impossible.~
 8     II,  7 |   prove that the thing defined exists: since even if there does
 9     II,  8 |   without apprehending that it exists, since while we are ignorant
10     II,  8 |        are ignorant whether it exists we cannot know its essential
11     II,  8 |      are aware whether a thing exists or not sometimes through
12     II,  8 |       knowledge that the thing exists, we must be in a wholly
13     II,  8 |    when we are unaware that it exists is to search for nothing.
14     II,  8 |     which we are aware that it exists. Let us then take the following
15     II,  8 |        this condition actually exists, we assert that A also actually
16     II,  8 |    assert that A also actually exists. Or again we may ask which
17     II,  8 |       and we know that eclipse exists, but we do not know what
18     II,  10|        are aware that triangle exists, we inquire the reason why
19     II,  10|      inquire the reason why it exists. But it is difficult thus
20     II,  10|       whether or not the thing exists. Moreover, a statement may
21     II,  12|    that if the effect actually exists the cause is actually existent,