"Time, Real and Imaginary"

From Tardis Wiki, the free Doctor Who reference

"Time, Real and Imaginary" was a poem by Samuel Taylor Coleridge. Richard Harries had a book of poems containing the piece. When Ian Stratford opened the book he found several of the lines underlined. They were:

Two lovely children run an endless race,
A sister and a brother!
This far outstripped the other
Yet ever runs she with reverted face,
And looks and listens for the boy behind,
For he, alas! is blind!
O'er rough and smooth with even step he passed,
And knows not whether he be first or last. (PROSE: The Banquo Legacy)