As love is full of unbefitting strains,
All wanton as a child, skipping and vain,
Form'd by the eye and therefore, like the eye,
Full of strange shapes, of habits and of forms,
Varying in subjects as the eye doth roll
To every varied object in his glance
The Works of Shakespeare: The merchant of Venice. As you like it. Love's labour's lost. The winter's tale (ed. 1767)