Need to ID this Robinson Jeffers poem

[astro]

Does anyone know what poem the quote below is from?
Ansel Adams

Little by little, he began to find his way. In late December, he wrote Alfred Stieglitz, quoting lines from the poet Robinson Jeffers. “Does it matter whether you hate yourself? At least love your eyes that can see, your mind that can hear the music, the thunder of the wings.”

[Earl_Snake-Hips_Tucker]

Google: [Robinson Jeffers thunder wings]

http://www3.baylor.edu/~Jesse_Airaudi/Robinson_Jeffers.htm

[astro]

*Originally posted by Earl Snake-Hips Tucker *
**Google: [Robinson Jeffers thunder wings]

http://www3.baylor.edu/~Jesse_Airaudi/Robinson_Jeffers.htm **

Thanks!