Read the following shakespearean sonnet.

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 damasked, 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.

the lines "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" employ a humor device. identify the device used and discuss its effect on the meaning and tone of the poem.