Astrophil and Stella 23: The curious wits, seeing dull pensiveness

The curious wits, seeing dull pensiveness 
Bewray itself in my long-settl'd eyes, 
Whence those same fumes of melancholy rise, 
With idle pains and missing aim do guess. 
Some, that know how my spring I did address, 
Deem that my Muse some fruit of knowledge plies; 
Others, because the prince my service tries, 
Think that I think state errors to redress; 
But harder judges judge ambition's rage, 
Scourge of itself, still climbing slipp'ry place, 
Holds my young brain captiv'd in golden cage. 
O fool or over-wise! alas, the race 
Of all my thoughts hath neither stop nor start 
But only Stella's eyes and Stella's heart.