If Shakespeare had to go on an author tour to promote Romeo and Juliet, he never would have written Macbeth.

These violent delights have violent ends
And in their triump die, like fire and powder
Which, as they kiss, consume

The sweetest honey is loathsome in its own deliciousness. And in the taste destroys the appetite. Therefore, love moderately.

To move is to stir, and to be valiant is to stand; therefore, if tou art mov'd, thou runst away. (To be angry is to move, to be brave is to stand still. Therefore, if you're angry, you'll run away.)

what ho, apothecary!

Well, in that hit you miss. She'll not be hit
With Cupid's arrow. She hath Dian's wit,
And, in strong proff of chastity well armed,
From Love's weak childish bow she lives uncharmed.
She will not stay the siege of loving terms,
Nor bide th' encounter of assailing eyes,
Nor ope her lap to saint-seducing gold.
O, she is rich in beauty; only poor
That, when she dies, with dies her store.
Act 1,Scene 1, lines 180-197