I learnt all these poems at school and usually only remember the opening lines:
Faster than fairies, faster than witches,
Bridges and houses, hedges and ditches;
And charging along like troops in a battle,
All through the meadows the horses and cattle:Robert Louis Stevenson
In Xanadu did Kubla Khan
A stately pleasure-dome decree: Samuel Taylor Coleridge
She walks in beauty, like the night
Of cloudless climes and starry skies; Lord Byron
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, Shakespeare
Shall I compare thee to a summer's day?
Thou art more lovely and more temperate:
Rough winds do shake the darling buds of May, Shakespeare
Margaret, are you grieving
Over Goldengrove unleaving? Gerald Manley Hopkins