Very few lyrics are actually 'perfect'; but this, the first verse of 'Drink to Me Only' would be my nomination, if ever there was such a competition!

"Drink to me only with thine eyes,
    And I will pledge with mine;
Or leave a kiss within the cup,
    And I'll not ask for wine.
The thirst that from the soul doth rise
    Doth ask a drink divine;
But might I of Jove's nectar sip,
    I would not change for thine."

The romance, and pathos, in this poem would be very difficult to improve! Added to which, it includes four '-ine' rhymes, that fit perfectly with the song and with its sentiments.

(Although even so, if I was being particularly critical, I might suggest that "I would not change ..." would sound a little better as "I'd never change ...", to place the word emphasis more appropriately)

What would you nominate as your favourite 'perfect lyric'?