So Soon Tired!

Am I so soon grown tired? - yet this old sky
Can open still each morn so blue an eye,
This great old river still through nights and days
Run like a happy boy to holidays,
This sun be still a bridegroom, though long wed,
And still those stars go singing up the night,
Glad as yon lark there splashing in the light:
Are these old things indeed unwearied,
Yet I, so soon grown tired, would creep away to bed!