Book, Chapter, Paragraph

1   I,     I,  7|   of the various arts, and contemplate the reasons of things? How,
2   I,    II,  2|   which the mind alone can contemplate within itself, or behold,
3   I,    IV,  1| other training; and let us contemplate, according to the form of
4   I,    VI,  2|  from such an end as this, contemplate the beginnings of things.