Men should be a little bad

MARIANA:
They say, best men are moulded out of faults;
And, for the most, become much more the better
For being a little bad: so may my husband.

William Shakespeare - Measure for measure (V, 1)

Effects of music

DUKE:
'Tis good; though music oft hath such a charm
To make bad good, and good provoke to harm.

William Shakespeare - Measure for measure (IV, 1)

Claudio's fear of Death

CLAUDIO:
Ay, but to die, and go we know not where;
To lie in cold obstruction and to rot;
This sensible warm motion to become
A kneaded clod; and the delighted spirit
To bathe in fiery floods, or to reside
In thrilling region of thick-ribbed ice;
To be imprison'd in the viewless winds,
And blown with restless violence round about
The pendent world; or to be worse than worst
Of those that lawless and incertain thought
Imagine howling: 'tis too horrible!
The weariest and most loathed worldly life
That age, ache, penury and imprisonment
Can lay on nature is a paradise
To what we fear of death.

Willian Shakespeare - Measure for measure (III, 1)

Be absolute for death

DUKE:

Be absolute for death; either death or life
Shall thereby be the sweeter. Reason thus with life:
If I do lose thee, I do lose a thing
That none but fools would keep: a breath thou art,
Servile to all the skyey influences,
That dost this habitation, where thou keep'st,
Hourly afflict: merely, thou art death's fool;
For him thou labour'st by thy flight to shun
And yet runn'st toward him still. Thou art not noble;
For all the accommodations that thou bear'st
Are nursed by baseness. Thou'rt by no means valiant;
For thou dost fear the soft and tender fork
Of a poor worm. Thy best of rest is sleep,
And that thou oft provokest; yet grossly fear'st
Thy death, which is no more. Thou art not thyself;
For thou exist'st on many a thousand grains
That issue out of dust. Happy thou art not;
For what thou hast not, still thou strivest to get,
And what thou hast, forget'st. Thou art not certain;
For thy complexion shifts to strange effects,
After the moon. If thou art rich, thou'rt poor;
For, like an ass whose back with ingots bows,
Thou bear's thy heavy riches but a journey,
And death unloads thee. Friend hast thou none;
For thine own bowels, which do call thee sire,
The mere effusion of thy proper loins,
Do curse the gout, serpigo, and the rheum,
For ending thee no sooner. Thou hast nor youth nor age,
But, as it were, an after-dinner's sleep,
Dreaming on both; for all thy blessed youth
Becomes as aged, and doth beg the alms
Of palsied eld; and when thou art old and rich,
Thou hast neither heat, affection, limb, nor beauty,
To make thy riches pleasant. What's yet in this
That bears the name of life? Yet in this life
Lie hid moe thousand deaths: yet death we fear,
That makes these odds all even.

William Shakespeare - Measure for measure (III, 1)

RSC Shakespeare - William Shakespeare The Complete Works

Liberty and human nature

CLAUDIO:
From too much liberty, my Lucio, liberty:
As surfeit is the father of much fast,
So every scope by the immoderate use
Turns to restraint. Our nature do pursue,
Like rats that ravin down their proper bane,
A thirsty evil, and when we drink we die.

William Shakespeare - Measure for measure (I, 3)