Theory is gray, and the tree of life evergreen.
理论是灰色的，而生活之树常青。
A gray monkey about a foot high, chained to a small tree, chattered nearby.
有一只约一英尺高的灰色猴子被用链条锁在一棵小树上，正在近旁吱吱乱叫。
As Goethe says "the theories is gray, the tree of life is evergreen."
正如歌德所言“理论是灰色的，生命之树常青。”
As Goethe says "the theories is gray, the tree of life is evergreen."
正如歌德所言“理论是灰色的，生命之树常青。”
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