I'm not sure I could ever express how much I love, or why I love,

trees 
and their profiles against the sky.

But I can sure collect some quotes on the matter.


"A tree against the sky possesses the same interest, 
the same character, the same expression as the figure of a human."
-Georges Rouault


"I thank you God for this most amazing day, 
for the leaping greenly spirits of trees, and for the blue dream of sky 
and for everything which is natural, which is infinite, which is yes."  -E.E. Cummings


"Our attitude toward nature, I’m convinced, is vitally connected 
with our attitudes toward ourselves." - Sharon Dequer "Discovering Nature"


"The poetry of  earth is never dead...The poetry of earth is ceasing never"
 - John Keats "On the Grasshopper and Cricket"