Sonnet 23 and then his collection of poems to a play. Sonnet 23 is considered an English or Shakespearean Sonnet. It contains 14 iambic pentameter lines. The rhyme scheme is "abab cdcd efef gg". The form consists of three quatrains and a couplet. All of the lines, including the fifth line are examples of iambic pentameter: After the octave (the first two quatrains) there is often a change referred to as a volta. In Sonnet 23 the volta is line nine's suggestion. "For fear of trust" has drawn different, though not necessarily contradictory, glosses. Nicolaus Delius has it "from want of self-confidence,"
Sonnet 15 that Sonnet 15's closing line "As he [i.e. Time] takes from you, I engraft you new" (15.14) is the "first of several traditional claims for the immortalizing power of verse." This theme of poetic immortality is continued in later sonnets, including sonnet 17's closing couplet "You should live twice: in [your child] and in my rhyme," in sonnet 18's last few lines "Nor shall death brag thou wander'st in his shade / When in eternal lines to time thou grow'st. / So long as men can breathe or eyes can see, / So long lives this, and this gives life