Shakespeare

"We are such stuff As dreams are made of, and our little life Is rounded with a sleep."  ~ Tempest, Act IV. Sc. 1.
"And, with a green and yellow melancholy, She sat, like Patience on a monument, Smiling at grief."
~ Twelfth Night, Act I, Sc. 1.

"Love sought is good, but given unsought is better."
~ Twelfth Night, Act III. Sc. 1.

"Some are born great, some achieve greatness, and some have greatness thrust upon them."
~ Twelfth Night, Act III. Sc. 4.

"Our doubts are traitors, And make us lose the good we oft might win, By fearing to attempt."
~ Measure for Measure, Act I, Sc. 5.

"The miserable have no other medicine, But only hope."
~ Measure for Measure, Act III, Sc. 1.
"Silence is the perfectest herald of joy; I were but little happy, if I could say how much."
~ Much Ado About Nothing, Act II, Sc. 1.

" Some, Cupid kills with arrows, some with traps."
~ Much Ado About Nothing, Act III, Sc. 1.

"The course of true love never did run smooth."
~ Midsummer Night's Dream, Act I, Ac. 1.

"Love looks not with the eyes, but with the mind; And therefore is winged Cupid painted blind."
~ Midsummer Night's Dream, Act I, Ac. 1.

"I hold the world but as the world, Gratiano; A stage, where every man must play a part, And mine a sad one."
~ Merchant of Venice, Act I, Sc. 1.

"Gratiano speaks an infinite deal of nothing; more than any man in all Venice. His reasons are as two grains of wheat hid in two bushels of chaff: you shall seek all day ere you find them: and, when you have them, they are not worth the search."
~ Merchant of Venice, Act I, Sc. 1.

"How far that little candle throws his beams! So shines a good deed in a naughty world."
~ Merchant of Venice, Act V, Sc. 1.

"All the world's a stage And all the men and women merely players: They have their exits and their entrances, And one man in his time plays many parts"
~ As You Like It, Act II, Ac. 7.

"A merry heart goes all the day, Your sad tires in a mile-a."
~ Winter's Tale, Act IV, Sc. 2.

"Present fears Are less than horrible imaginings."
~ Macbeth, Act I, Sc. 3.

"Come what come may, Time and the hour runs through the roughest day."
~ Macbeth, Act I, Sc. 3.

"Nothing in his life Became him like the leaving it."
~ Macbeth, Act I, Sc. 4.

"The attempt, and not the deed, Confound us."
~ Macbeth, Act II, Sc. 2.

"Infirm of purpose!"
~ Macbeth, Act II, Sc. 2.

"My way of life Is fallen into the sear, the yellow leaf; And that which should accompany old age, As honor, love, obedience, troops of friends, I must not look to have; but in their stead, Curses, not loud, but deep, mouth-honor, breath, Which the poor heart would fain deny, but dare not."
~ Macbeth, Act V, Sc. 3.

"To-morrow, and to-morrow, and to-morrow, 
Creeps in this petty pace from day to day, 
To the last syllable of recorded time; 
And all our yesterdays have lighted fools 
The way to dusty death. Out, out, brief candle!
Life's but a walking shadow; a poor player,
That struts and frets his hour upon the stage,
And then is heard no more; it is a tale
Told by an idiot, full of sound and fury,
Signifying nothing."
~ Macbeth, Act V, Sc. 5.

"Blow wind! come wrack! At least we'll die with harness on our back."
~ Macbeth, Act V, Sc. 5.

"Life is as tedious as a twice-told tale, Vexing the dull ear of a drowsy man."
~ King John, Act III, Sc. 4.

"I was a coward on instinct."
~ King Henry IV (Part 1), Act II, Sc. 4.

"Sleep, gentle sleep, Nature's soft nurse, how have I frighted thee, That thou no more wilt weigh my eyelids down, And steep my senses in forgetfulness?"

~ King Henry IV (Part 2), Act III, Sc. 1.

"Uneasy lies the head that wears a crown."
~ King Henry IV (Part 2), Act III, Sc. 1.

"She is beautiful; and therefore to be wooed: She is a woman; therefore to be won."
~ King Henry VI (Part 1), Act V, Sc. 3.

"Smooth runs the water where the brook is deep."
~ King Henry VI (Part 2), Act III, Sc. 1.

"Suspicion always haunts the guilty mind"
~ King Henry VI (Part 3), Act V, Sc. 6.

"O, I have passed a miserable night, So full of fearful dreams, of ugly signs, That, as I am a Christian faithful man, I would not spend another such a night, Though 'twere to buy a world of happy days."
~ King Richard III, Act I, Sc. 4.

"True hope is swift, and flies with swallow's wings, Kings it makes gods, and meaner creatures kings."
~ King Richard III, Act V, Sc. 2.

"Men's evil manners live in brass; their virtues We write in water."
~ King Henry VII, Act IV, Sc. 2.

"One touch of nature makes the whole world kin"
~ Troilus and Cressida, Act III, Sc. 3.

"Between the acting of a dreadful thing And the first motion, all the interim is Like a phantasma, or a hideous dream."
~ Julius Caesar, Act II, Sc. 1.

"Cowards die many times before their deaths; The valiant never taste of death but once."
~ Julius Caesar, Act II, Sc. 2.

"There are no tricks in plain and simple faith."
~ Julius Caesar, Act IV, Sc. 2.

"His life was gentle, and the elements So mixed in him, that nature might stand up And say to all theworld, This was a man!"
~ Julius Caesar, Act V, Sc. 5.

"There's beggary in the love that can be reckoned"
~ Antony and Cleopatra, Act I, Sc. 1.

"How sharper than a serpent's tooth it is, To have a thankless child."
~ King Lear, Act I, Sc. 4.

"Striving for better, oft we mar what's well."
~ King Lear, Act I, Sc. 4.

"One fire burns out another's burning. One pain is lessened by another's anguish."
~ Romeo and Juliet, Act I, Sc. 2.

"Too early seen unknown, and known too late"
~ Romeo and Juliet, Act I, Sc. 5.

"What's in a name? that which we call a rose By any other name would smell as sweet."
~ Romeo and Juliet, Act II, Sc. 2.

"Good-night, good-night! parting is such sweet sorrow, That I shall say good-night till it be morrow."
~ Romeo and Juliet, Act II, Sc. 2.

"My man's as true as steel."
~ Romeo and Juliet, Act II, Sc. 4.

"My poverty, but not my will, consents."
~ Romeo and Juliet, Act V, Sc. 1.

"Give every man thy ear, but few thy voice."
~ Hamlet, Act I, Sc. 3.

"Neither a borrower nor a lender be."
~ Hamlet, Act I, Sc. 3.

"Let me not burst in ignorance!"
~ Hamlet, Act I, Sc. 4.

"Brevity is the soul of wit."
~ Hamlet, Act II, Sc. 2.

"Doubt thou the stars are tire; Doubt that the sun doth move; Doubt truth to be a liar; But never doubt I love."
~ Hamlet, Act II, Sc. 2.

"Though this be madness, yet there's method in it."
~ Hamlet, Act II, Sc. 2.

"What a piece of work is man! How noble in reason! how infinite in faculties! in form and moving, how express and admirable! in action, how like an angel! in apprehension, how like a God!"
~ Hamlet, Act II, Sc. 2.
"To be, or not to be? that is the question:
Whether 'tis nobler in the mind, to suffer
The slings and arrows of outrageous fortune,
Or to take arms against a sea of troubles,
And, by opposing, end them?—To die—to sleep—
No more—and, by a sleep, to say we end
The heartache, and the thousand natural shocks
That flesh is heir to—'tis a consummation
Devoutly to be wished. To die—to sleep—
To sleep! perchance, to dream—ay, there's the rub;
For in that sleep of death what dreams may come,
When we have shuffled off this mortal coil,
Must give us  pause."
           ~ Hamlet, Act III, Sc. 1.

"To grunt and sweat under a weary life,
But that the dread of something after death—
The undiscovered country, from whose bourne
No traveler returns—puzzles the will,
And makes us rather bear those ills we have,
Than fly to others that we know not of?
Thus conscience does make cowards of us all"
~ Hamlet, Act III, Sc. 1.
"Suit the action to the word, the word to the action."
~ Hamlet, Act III, Sc. 2.

"Assume a virtue, if you have it not."
~ Hamlet, Act III, Sc. 4.

"When sorrows come, they come not single spies, But in battalions!"
~ Hamlet, Act IV, Sc. 5.

"There is a special providence in the fall of a sparrow."
~ Hamlet, Act V, Sc. 2.

"But I will wear my heart upon my sleeve For daws to peck at."
~ Othello, Act I, Sc. 1.
"Of one that loved not wisely, but too well."
~ Othello, Act V, Sc. 2.