Here are some easy to memorize Shakespeare sonnets.
Let me not to the marriage of true minds Admit impediments, love is not love Which alters when it alteration finds, Or bends with the remover to remove. O no, it is an ever-fixed mark That looks on tempests and is never shaken; It is the star to every wand’ring bark, Whose worth’s unknown, although his height be taken. Love’s not Time’s fool, though rosy lips and cheeks Within his bending sickle’s compass come, Love alters not with his brief hours and weeks, But bears it out even to the edge of doom: If this be error and upon me proved, I never writ, nor no man ever loved.
Im going to go with shakespeare, too. Not one of my favorites, but probably one of the easiest to memorize: Sonnet 130 My mistress’ eyes are nothing like the sun; Coral is far more red than her lips’ red: If snow be white, why then her breasts are dun; If hairs be wires, black wires grow on her head. I have seen roses damask’d, red and white, But no such roses see I in her cheeks; And in some perfumes is there more delight Than in the breath that from my mistress reeks. I love to hear her speak,–yet well I know That music hath a far more pleasing sound; I grant I never saw a goddess go, My mistress when she walks, treads on the ground; And yet, by heaven, I think my love as rare As any she belied with false compare.