Now hollow fires burn out to black,
And lights are guttering low:
Square your shoulders, lift your pack,
And leave your friends and go.

Oh never fear, man, nought's to dread,
Look not to left nor right:
In all the endless road you tread
There's nothing but the night.

Alfred Edward Housman

http://www.poemhunter.com/poem/now-hollow-fires-burn-out-to-black/