"Too good for great things, and too great for good,
Their princes serve their priest, yet that priest is
Growne king, even by the arts of flesh and blood," &c.
_Workes_, p. 82.: London, 1633, 8vo.
As for the last line of the quotation:
"While still 'I dare not' waits upon 'I would,'"
it smacks very strongly of _Macbeth_ (Act I. Sc. 7.), and "the poor cat
i'th adage:"
"Catus amat pisces, sed non vult tingere plantas."