Romeo and Juliet, Act I, Scene 1, Speech 212-222

Romeo. Why, such is love's transgression.
Griefs of mine own lie heavy in my breast,
Which thou wilt propagate, to have it prest
With more of thine: this love that thou hast shown
Doth add more grief to too much of mine own.
Love is a smoke raised with the fume of sighs;
Being purged, a fire sparkling in lovers' eyes;
Being vex'd a sea nourish'd with lovers' tears:
What is it else? a madness most discreet,
A choking gall and a preserving sweet.
Farewell, my coz.