Who has seen the wind? A Poem by Christina Rossetti www.poetryfoundation.org Who has seen the wind? Neither I nor you: But when the leaves hang trembling, The wind is passing through. Who has seen the wind? Neither you nor I: But when the trees bow down their heads, The wind is passing by. The Wind Rises windtreesseeing
Invisible substance We wanted wood, not only in many visible places, but also in the roof trusses of the homeroom buildings, where they are invisible. Fujita wanted to replace the invisible trusses with steel trusses. They could not understand the idea that it was the actual substance — even though not visible — which would control the feeling of the thing. Christopher Alexander, The Battle for the Life and Beauty of the Earth All the way throughFinished on the inside material