上句见：Day357
The Story of Philosophy《哲学的故事》第1章Plato第7节VI. The Psychological Solution第5段第4句：
Music is valuable not only because it brings refinement of feeling and character, but also because it preserves and restores health. There are some diseases which can be treated only through the mind (Charades,157): so the Corybantic priest treated hysterical women with wild pipe music, which excited them to dance and dance till they fell to the ground exhausted, and went to sleep; when they awoke they were cured. The unconscious sources of human thought are touched and soothed by such methods; and it is in these substrata of behavior and feeling that genius sinks its roots. "No man when conscious attains to true or inspired intuition, but rather when the power of intellect is fettered in sleep or by disease or dementia"; the prophet (manlike) or genius is akin to the madman (manic) (Phadrus, 244).
浙江大学译本：“任何人在清醒时都不可能收获真正的或有如灵光闪现般的直觉，唯有当人的理智因熟睡、疾病或痴呆而被捆绑束缚时，它们才会出现”；先知或天才，他们与疯子并无大异。（《费德罗篇》，第244节）
解析
1、"No man when conscious attains to true or inspired intuition, but rather when the power of intellect is fettered in sleep or by disease or dementia";
“人在清醒时无法获得真正的或有如灵光闪现般的直觉，唯有当理智或因睡觉或因疾病或因痴呆束缚限时”
attain: to accomplish or achieve (something): to succeed in getting or doing (something)通常指经过努力获得，达到
Just as soon as you attain to one ambition you see another one glittering higher up still.一旦你实现了一个抱负，就会看到另一个在更高处闪闪发光。《绿山墙的安妮》
Attain VS attain to（来自《葛传椝英语惯用法词典》）
通用：power（权力），distinction（著名），knowledge（知识），wisdom（智慧）以及在表示年龄的词语（如old age，his twentieth year等）前
仅用attain：在end（目的），object（目的），ideal（理想），aspiration（愿望）前
fetter: to prevent (someone or something) from moving or acting freely束缚
The prince has a taste for the arts, and would improve if his mind were not fettered by cold rules and mere technical ideas.王子对艺术有口味，如果他的思想不被冷酷的规则和纯粹的技术思想所束缚，他将会进步。《少年维持之烦恼》
dementia: a mental illness that causes someone to be unable to think clearly or to understand what is real and what is not real 痴呆
Loneliness increases the risk of heart disease, strokes and dementia. 孤独会增加患心脏病、中风和痴呆症的风险。《经济学人》
2、the prophet (manlike) or genius is akin to the madman (manic) (Phadrus, 244).
先知（神性之人）或天才，与疯子（癫狂之人）相差无几。（《斐德罗篇》，第244节）
akin: similar or related相似的，类似的
If manufacturing is akin to science, then services are more like the arts. 如果制造业类似于科学，那么服务业更像是艺术。《经济学人》
manic：having or relating to a mental illness that causes someone to become very excited or emotional发狂的，狂躁的
Without them, the suffer faces relapses of manic and depressive episodes.没有这些， 患者将面临狂躁和抑郁的复发。《心理学小课堂》
Phadrus《斐德罗篇》：柏拉图的重要对话录之一，主要探讨了爱情、当时的修辞学以及灵魂三分论。
这句指出无知、天才与疯子都不是靠理性思考的。因为理性思考不会真正的直觉。这里的直觉有点像“第六感”，找不到任何证据却有相当准的感觉。
正如《斐德罗篇》第244节所说：“人在清醒时无法获得真正的或有如灵光闪现般的直觉，唯有当理智或因睡觉或因疾病或因痴呆束缚限时”，先知（神性之人）或天才，与疯子（癫狂之人）相差无几。
整段
这段由音乐引出潜意识与天才，是“案例——>理论——>哲理”层层递进的结构, 形成“实证-思辨”闭环。
音乐之所以珍贵，不仅是因为它使情感和性格得到陶冶及提升，还因为它能维持和恢复健康。有些病只需接受心理疗法（《查米迪斯篇》，第57节）：比如科律班忒斯祭司用狂野的管乐治疗患癔症的女性，让她们尽情跳舞，直到精疲力竭倒地，昏昏入睡；一觉睡醒，病就好了。这些疗法触及和抚慰人类思想中的无意识源泉；而天才的根基，正是深植于这些行为和情感的底层之中。正如《斐德罗篇》第244节所说：“人在清醒时无法获得真正的或有如灵光闪现般的直觉，唯有当理智或因睡觉或因疾病或因痴呆束缚限时”，先知（神性之人）或天才，与疯子（癫狂之人）相差无几。
