Book, Paragraph

 1      I,  1 |        for in regard to the first principles of science it is improper
 2      I,  1 |           them; each of the first principles should command belief in
 3      I,  1 |        happens in the case of the principles of contentious arguments;
 4      I,  2 |         the ultimate bases of the principles used in the several sciences.
 5      I,  2 |      discuss them at all from the principles proper to the particular
 6      I,  2 |          in hand, seeing that the principles are the prius of everything
 7      I,  2 |      wherein lies the path to the principles of all inquiries.~
 8     IV,  2 |     examined by means of the same principles: for they depend upon common
 9     IV,  3 |         employ as your elementary principles those already stated for
10     IV,  6 |          the aforesaid elementary principles - (a) that the genus has
11     VI,  9 | discrepancy, using the elementary principles drawn from consideration
12     VI,  14|           of the chief elementary principles to take by oneself a happy
13   VIII,  3 |       continuous proof from first principles, or else all discussion
14   VIII,  3 |       begins with the appropriate principles, and connects inference
15   VIII,  3 |      reached. Now to define first principles is just what answerers do
16   VIII,  3 |          in the case of the first principles: for while the other propositions
17   VIII,  3 |        far removed from the first principles; or else the reason is that
18   VIII,  3 |         primary of the elementary principles are without exception very
19   VIII,  5 |        but because on Heraclitus’ principles one has to say so. The same
20   VIII,  14|        well up in regard to first principles, and to have a thorough
21   VIII,  14|          see whether they rest on principles of general application: