| Quote | Character | Play |
| Why, Marcus, no man should be mad but I. | |
| Romeo! Humours! Madman! Passion! Lover! | |
| Nay, I’ll ne’er believe a madman till I see his brains. | |
| Though this be madness yet there is method in it. | |
| No settled sense of the world can match the pleasure of that madness. Let it alone. | |
| It is the very error of the moon, She comes more nearer earth than she was wont and makes men mad. | |
| This cold night will turn us all to fools and madmen. | |
| Her madness hath the oddest frame of sense, Such a dependency of thing on thing as e’er I heard in madness. | |
| Love is merely a madness, and I tell you, deserves as well a dark house and a whip as madmen do. | |
| O let me not be mad, not mad, sweet heaven! Keep me in temper, I would not be mad. | |
| | Quote | Character | Play |
| Why, this is very midsummer madness. | |
| I am but mad north-north-west. When the wind is southerly I know a hawk from a handsaw. | |
| You have showed a tender fatherly regard to wish me wed to one half lunatic. | |
| ‘Tis the time’s plague when madmen lead the blind. | |
| O! Full of scorpions is my mind, dear wife! | |
| O, what a noble mind is here o’erthrown! | |
| Thy tyranny, together working with thy jealousies…O, think what they have done, and then run mad indeed: stark mad! | |
| Where is my wit? I would be gone. I speak I know not what. | |
| O judgment, thou art fled to brutish beasts, and men have lost their reason! | |
| Were such things here, as we do speak about, Or have we eaten on the insane root, that takes the reason prisoner? | |
| Gertrude | |
| Pericles | |
| Brutus | |
| Helena | |
| Romeo | |
| Juliet | |
| Friar Laurence | |
| Capulet | |
| Benvolio | |
| Richard | |
| Coriolanus | |
| Marcus | |
| Lysander, Puck, Demetrius | |
| Tamora | |
| Touchstone | |
| Jaques | |
| Julius Caesar | |
| Edgar | |
| Edmund | |
| Viola | |
| Bottom | |
| Horatio | |
| Cassius | |
| Iago | |
| Hermia | |
| The Bear | |
| Kent | |
| Henry | |
| Oberon, Theseus, etc. | |
| Imogene | |
| Hermione, Polixenes, Camillo | |
| Lady Macbeth | |
| Cleopatra | |
| Prospero | |
| Falstaff | |
| Laertes | |
| Troilus | |
| Petruchio | |
| Macduff | |
| Benedick | |
| Beatrice | |
| Tybalt | |
| Nurse | |
| Shylock | |
| Orlando | |
| Shakespeare | |
| Caliban | |
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