Final answer:
In Sonnet 60, the speaker hopes that his poetry will outlast the destructive power of time, preserving the beauty of the youth forever within its lines.
Step-by-step explanation:
In Sonnet 60, the speaker expresses hope that his verse will outlive the inevitable decay and destruction that time brings, granting immortality to the youth's beauty depicted in the sonnet. Despite the passage of time and the ravages it may cause, the speaker suggests that his poetry will preserve the beauty that otherwise would be lost. This is a common theme within Shakespeare's sonnets, where the power of verse is often seen as a defense against the transience of life.