Sonnet 14 that Shakespeare's early comedy included a line stating "From women's eyes this doctrine I derive." In the context of Sonnet 14 it is explaining the important of procreation, and that it is necessary. Ovid's "Amores" has a similar line "at mihe te comitem auroras usque futuram- per me perque oculos, siders rostra, tuos." Both Samuel Johnson and George Steevens noted the similar meaning and that it indicates Roman influence on Shakespeare's poetry. Lines 10-11 are saying that one can see that truth and beauty would thrive together; if only you would focus on the business of making provisions for yourself.
Petrarchan sonnet first 8 lines) typically introduces the theme or problem using a rhyme scheme of ABBAABBA. The sestet (the last 6 lines) provides resolution for the poem and rhymes variously, but usually follows the schemes of CDECDE or CDCCDC. Octave - introduces the theme or problem Sestet - solves the problem Petrarchan sonnet The Petrarchan sonnet is a sonnet form not developed by Petrarch himself, but rather by a string of Renaissance poets. Because of the structure of Italian, the rhyme scheme of the Petrarchan sonnet is more easily fulfilled in that language than in English. The original Italian sonnet form