Who said "Still water shows every hair. Imagine a still mind."?

Zhuangzi (c. 369–286 BC). Source: Zhuangzi 13 (The Way of Heaven).

What is the original Chinese?

水靜，則明燭鬚眉 ... 水靜猶明，而況精神？. Translated from the original Chinese by Spartan Surfers.

Still water shows every hair. Imagine a still mind.

Zhuangzi, Zhuangzi 13 (The Way of Heaven)

The source

"Still water shows every hair. Imagine a still mind." Zhuangzi said it in Zhuangzi 13 (The Way of Heaven). Translated from the original Chinese by Spartan Surfers.

"水靜，則明燭鬚眉 ... 水靜猶明，而況精神？"

Original Chinese, Zhuangzi 13 (The Way of Heaven). Chinese: Zhuangzi text via zh.wikisource; chapter title after Legge 1891.

Who said it

Zhuangzi (c. 369–286 BC). Taoist storyteller of the butterfly dream, the useless tree and the cook who never dulled his knife.

Questions

Who said "Still water shows every hair. Imagine a still mind."?: Zhuangzi (c. 369–286 BC). Source: Zhuangzi 13 (The Way of Heaven).
What is the original Chinese?: 水靜，則明燭鬚眉 ... 水靜猶明，而況精神？. Translated from the original Chinese by Spartan Surfers.