One single line of poetry....

"Oh! I have slipped the surly bonds of Earth
And danced the skies on laughter-silvered wings;
Sunward I’ve climbed, and joined the tumbling mirth
of sun-split clouds, — and done a hundred things
You have not dreamed of — wheeled and soared and swung
High in the sunlit silence. Hov’ring there,
I’ve chased the shouting wind along, and flung
My eager craft through footless halls of air....

Up, up the long, delirious, burning blue
I’ve topped the wind-swept heights with easy grace.
Where never lark, or even eagle flew —
And, while with silent, lifting mind I've trod
The high untrespassed sanctity of space,

• Put out my hand, and touched the face of God."

And I remember a line from a heartbreaking poem about a stillbirth/miscarriage, although I can't remember for the life of me remember either the poem or the poet:

You could not come, and yet you go.

Go from me. Yet I feel that I shall stand
Henceforward in thy shadow.

• Elizabeth Barret Browning, Go From Me

Long years have left their writing on my brow

• George Eliot, Brother and Sister

And a whole poem (almost one sentence!):

I stepped from Plank to Plank
A slow and cautious way
The Stars about my Head I felt
About my Feet the Sea.

I knew not but the next
Would be my final inch -
This gave me that precarious Gait
Some call Experience.

• Emily Dickinson, I Stepped from Plank to Plank

Oh, and that old chestnut "As idle as a painted ship upon a painted ocean" from The Ryyme of the Ancient Mariner, sends shivers down my soul.

This nickname is a slight misquote of the first line of Darkness by Lord Byron. Should actually be

"I had a dream, which was not all a dream"

"All may yet be well, for God may sort it so, but if he does its more than I expect or we deserve"

Richard II (massively underrated play), Wm Shakespeare

"To every thing there is a season, and a time to every purpose under the heaven:"

Ecclesiastes

'In me she has drowned a young girl, and in me an old woman
Rises toward her day after day, like a terrible fish.'

Mirror - Sylvia Plath

it is the silence of astounded souls

— Follow the Water by Sylvia Plath

And will you succeed?
Yes! You will, indeed!
(98 and 3/4 percent guaranteed.)
KID, YOU'LL MOVE MOUNTAINS!

Dr. Seuss

All changed, changed utterly:
A terrible beauty is born.

WB Yeats

There is freedom waiting for you
on the breezes of the sky
And you ask 'what if I fall?'
Oh, but my darling
was
What if you fly?

"Valerie fondles lovers like a mousetrap fondles mice"
(Roger Mcgough, Discretion)

Latin for "it is a sweet and fitting thing to die for ones country".

From Dulce et Decorum Est- Wilfred Owen

Dulche et decorum est pro patria mori.

He met her at the Surrey Docks, Saturday was the colour of his socks,

Also loved Full Moon and Little Frieda by Hughes which reminded if his poem Wind which has many fantastic lines and starts -

This house has been far out at sea all night

Also because my dad read it to us and I now read it to my girls in the days running up to Christmas

King John was not a good man
He had his little ways
And sometimes no one spoke to him for days and days and days...

I gave what other women gave
That stepped out of their clothes.
But when this soul, its body off,
Naked to naked goes,
He it has found shall find therein
What none other knows,

Yeats A Last Confession

'Time is the fire in which we burn' - Delmore Schwartz, as used in Star Trek, Generations :)

And by Ernest Dowson

They are not long, the weeping and the laughter,
Love and desire and hate;
I think they have no portion in us after
We pass the gate.

They are not long, the days of wine and roses,
Out of a misty dream
Our path emerges for a while, then closes
Within a dream.

The boast of heraldry, the pomp of pow'r,
And all that beauty, all that wealth e'er gave,
Awaits alike th' inevitable hour.
The paths of glory lead but to the grave.

Gray: Elegy written in a country churchyard

also the opening lines

The curfew tolls the knell of parting day,
The lowing herd wind slowly o'er the lea,
The plowman homeward plods his weary way,
And leaves the world to darkness and to me.

So many of my favourites already on this thread. I feel a little triumphant that I have one that hasn't been mentioned.

'Love poem' by John Nims to his 'clumsiest dear who's hand shipwrecks glasses'.

The last line being ' for if your hands fall white and empty, all the toys of the world would break'

This is one moment,
But know that another
Shall pierce you with a sudden painful joy.

T S Eliot

Most things are never meant.
From Larkin's Going, going.

I see a lily on thy brow,
With anguish moist and fever-dew

La Belle Dame Sans Merci (Keats)

An infernal mass, a black, horrific army I'll not succumb to Satan's origami

(About crows)

Roger McGough
Such an evocative image.

I also like:
Where once I used to scintillate now I sin till ten past three

And Ivor Cutlers
Socks are more cunning than they let on.