Lost Angel of a ruined Paradise! She knew not 'twas her own; as with no stain She faded, like a cloud which had outwept its rain.

-Shelley, Percy Bysshe
Adonais, stanza10.

It's a truism in technological development that no silver lining comes without its cloud.

-Sterling, Bruce
  Opening statement to the House Subcommittee on Telecommunications and Finance,Washington DC, 29 Apr.

Ring out, wild bells, to the wild sky, The flying cloud, the frosty light: The year is dying in the night; Ring out, wild bells, and let him die. Ring out the old, ring in the new, Ring, happy bells, across the snow: The year isgoing, let him go; Ring out the false, ring in the true.

-Tennyson
  In Memoriam A.H.H., canto106, l.1^8.

At Flores in the Azores Sir Richard Grenville lay, And a pinnace, like a fluttered bird, came flying from far away: 'Spanishships of warat sea! Wehavesighted fifty-three!' Then sware Lord Thomas Howard: ''Fore God I am no coward; But I cannot meetthem here, for my ships are out of gear, And the half my men are sick. I must fly, but followquick. Wearesix ships oftheline; canwefight withfifty-three?' Then spake Sir Richard Grenville: 'I know you are no coward; You fly them for a moment to fight with them again. But I've ninety men and more that are lying sick ashore. I should count myself the coward if I left them, my Lord Howard, To these Inquisition dogs and the devildoms of Spain.' So Lord Howard passed away with five ships of war that day, Till he melted like a cloud in the silent summer heaven.

-Tennyson
  'The Revenge', stanzas1^3, l.1^14.

Happy those early days when I Shined in my Angel-infancy. Before I understood this place Appointed for my second race, Or taught my soul to fancy aught But a white, celestial thought; When yet I had not walked above A mile or two from my first love, And looking back (at that short space) Could see a glimpse of His bright face. When on some gilded cloud or flower My gazing soul would dwell an hour And in those weaker glories spy Some shadows of eternity.

-Vaughan, Henry
  Silex Scintillans,'The Retreat'.

I wandered lonelyas a cloud That floats on high o'er vales and hills, When all at once I saw a crowd, A host, of golden daffodils; Beside the lake, beneath the trees, Fluttering and dancing in the breeze.

-Wordsworth,William
  'I wandered lonely as a cloud', stanza1 (published1807).

The horse that comes from the road, The rider, the birds that range From cloud to tumbling cloud, Minute by minute they change; A shadow of cloud on the stream Changes minute by minute; A horse-hoof slides on the brim, And a horse plashes within it; The long-legged moor-hens dive, And hens to moor-cocks call; Minute by minute they live: The stone's in the midst of all.

-Yeats,W(illiam) B(utler)
  'Easter1916', l.45^56. Collected in Michael Robartes and the Dancer (1921).