That thou art blamed shall not be thy defect,
For slander's mark was ever yet the fair;
The ornament of beauty is suspect,
A crow that flies in heaven's sweetest air.
So thou be good, slander doth but approve
Thy worth the greater, being wooed of time;
For canker vice the sweetest buds doth love,
And thou present'st a pure unstained prime.
Thou hast passed by the ambush of young days
Either not assailed, or victor being charged;
Yet this thy praise cannot be so thy praise,
This is the core of the Bard’s message. The word “prime” means in this context not only youth but essence. This is what the beautiful boy conveys to the world.
Sonnet 70