Mintamos a boca llena

When my love swears that she is made of truth
I do believe her, though I know she lies,
That she might think me some untutored youth,
Unlearned in the world´s false subtleties.

Thus vainly thinking that she thinks me young,
although she knows my days are past the best,
simply I credit her false-speaking tongue;
On both sides thus is simple truth suppressed.

But wherefore says she not she is unjust?
And wherefore says not I that I am old?
O, love´s best habit is in seeming trust,
and age in love loves not to have years told.

Therefore I lie with her, and she with me,
and in our faults by lies we flattered be.

William Shakespeare - Soneto 138

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Mi vida ¡cuánto te quiero!
dijo mi amada, y mentía.
Yo también mentí: te creo.
Te creo, dije, pensando:
así me tendrá por niño.
Mas ella sabe mis años.
Si dos mentirosos hablan
ya es la mentira inocente:
Se mienten, mas no se engañan.
Pero los labios que besan
son de mentira tan dulce...
Mintamos a boca llena.

Antonio Machado (Versión Soneto 138 de Shakespeare)