Dialogue

 1 Intro|       the world was composed of solids, between the elements of
 2 Intro|        are bodies and therefore solids, and solids are contained
 3 Intro|       and therefore solids, and solids are contained in planes,
 4 Intro|         the three first regular solids are formed—first, the equilateral
 5 Intro| geometrical figures have formed solids? We must reply again that
 6 Intro|        speaking of surfaces and solids compounded of prime numbers (
 7 Intro|    there were only five regular solids was already known to the
 8 Intro|       their transformation into solids. The first solid is a regular
 9 Intro|         transformations of real solids, but of imaginary geometrical
10 Intro|   should speak of each of these solids as a possible world in itself,
11 Intro|        by which surfaces become solids; and he characteristically
12 Intro|     compare the construction of solids out of surfaces in his account