Sonnet 18 is perhaps the best known of all sonnets. Shakespeare wrote 154 of them but this one tends to top most popular lists. In this sonnet, structured according to the Shakespearean (rather than the Petrarchan) rhyme scheme, the speaker questions whether he should compare his lover to a summer's day. He decides, however, that the comparison would be ill-fitting, because his lover is both more lovely and more temperate.
- William Shakespeare