The organism is essentially a passive responder to environmental stimuli.
Literature is the question minus the answer.
不要过于自信,要始终保持对未知事物的敬畏。
解释:脚力不强劲,行程就不会远;刀刃不锋利,割东西就不会深。
书是一扇门,你打开它,然后走进去。