translation.en: Tree bark is particularly good because it's nice and grainy, branchy, black-and-white splotchy and you can get the pattern-seeking -- humans are pattern-seeking animals.
translation.zh: 树皮的效果特别好，因为粗糙且枝繁， 黑白有污点，然后你就可以寻找图样， 人类是图样找寻的动物。