The very countenance of plighted troth
’Twixt heaven and earth, where in one moment blend
The hope of one and happiness of both.
8
For beauty being the best of all we know
Sums up the unsearchable and secret aims
Of nature, and on joys whose earthly names
Were never told can form and sense bestow;
And man hath sped his instinct to outgo
The step of science; and against her shames