Indeed indeed, I cannot tell,
Though I ponder on it well,
Which were easier to state,
All my love or all my hate.
Surely, surely, thou wilt trust me
When I say thou dost disgust me.
O, I hate thee with a hate
That would fain annihilate;
Yet sometimes against my will,
My dear friend, I love thee still.
It were treason to our love,
And a sin to God above,
One iota to abate
Of a pure impartial hate.

Henry David Thoreau

http://www.poemhunter.com/poem/indeed-indeed-i-cannot-tell/