The play Romeo and Juliet is full of lines and imagery that depict both romance and violence as passionate emotions.
One quote depicting the passion of violence is spoken by Prince Escalus in the opening scene,
What, ho! you men, you beasts,Prince Escalus speaks of the feuding families' hatred as a "fire." Since love and hate can both be described in terms of a hot, or fiery, emotion, this phrase serves to illustrate the passion felt in violence. Likewise, a quote that portrays love as a fiery feeling of passion is spoken by Romeo later in this scene: "Love is a smoke rais'd with the fumes of sighs," meaning that love is the smoke that is produced from heated sighing (line 190).
That quench the fire of your pernicious rage
With purple fountains issuing from your veins! (Act 1, Scene 1)
In Act 2, a quote that refers to Romeo's passionate feelings is spoken in jest by Mercutio as he and Benvolio search for Romeo after the Capulets' feast. Mercutio hollers, "Romeo! humours! madman! passion! lover! / Appear thou in the likeness of a sigh," serving to joke about Romeo's insistence in feeling heavy-hearted over Rosaline.
One good quote depicting Juliet's passionate feelings for Romeo in Act 2, Scene 2 is the passage:
What's Montague? it is not hand, nor foot,The references to body parts, beginning with sexually least important and escalating into references that are sexually most important, such as "arm," "face," and especially "any other part belonging to a man," serves to show that Juliet is at this moment thinking of Romeo in a passionate and sexual manner.
Nor arm, nor face, nor any other part
Belonging to a man. (line 42-44)
Another good passage referring to the passion of violence can be seen in Act 3, Scene 1 in Benvolio's opening speech in which he says:
The day is hot, the Capulets abroad,Again, the references to heat help to portray violence as a hot, passionate feeling, while the phrase "mad blood," also portrays it as a passionate, insane emotion. Similarly, Mercutio refers to Benvolio as being "as hot a Jack in thy mood as any in Italy," meaning that Benvolio is as hot tempered as any man in Italy. Again, the references to heat portray anger and violence as a passionate emotion.
And, if we meet, we shall not scape a brawl;
For now, these hot days, is the mad blood stirring.