Claude McKay - The Barrier

I must not gaze at them although
Your eyes are dawning day;
I must not watch you as you go
Your sun-illumined way;

I hear but I must never heed
The fascinating note,
Which, fluting like a river reed,
Comes from your trembing throat;

I must not see upon your face
Love's softly glowing spark;
For there's the barrier of race,
You're fair and I am dark.

Claude McKay

http://www.poemhunter.com/poem/the-barrier-2/