Ingratitude

Blow, blow, thou winter wind,

Thou are not so unkind

As man's ingratitude;

Thy tooth is not so keen

Because thou are not seen,

Although thy breath be rude.

Freeze, freeze, thou bitter sky,

Thou dost not bite so nigh

As benefits forgot;

Though thou the waters warp,

Thy sting is not so sharp

As friend remembered not.

William Shakespeare.