冷 in Chinese / Japanese...

冷 is “cold” in Chinese, Japanese Kanji, and old Korean Hanja.

This can also mean cool, chilled, and unheated.

In Chinese, this can be the surname, Leng.

In Japanese, it can be the given/surname Rei.

冷 is an unusual title for a wall scroll but it's OK if “cold” has a special meaning to you, or your name is Leng or Rei.

冷靜 means calm and cool-headed in Chinese, Japanese, and Korean.

Other translations: calmness, composure, coolness, serenity, tranquility.

冷靜 is a good wall scroll for someone that wants to remind themselves to stay calm and level-headed.

冷酷 means relentless or ruthless in Chinese, and Japanese Kanji.

It can also be translated as grim, unfeeling, callous, cruel, or cold-hearted.

This is a rather negative word. it’s really inappropriate for a wall scroll, so please don’t order this unless you really want to shock Asian people who see it.

冷静になる is a Japanese phrase that means to collect oneself, to chill out, to cool off, or to recover oneself.

Note: Because this selection contains some special Japanese Hiragana characters, it should be written by a Japanese calligrapher.

不當和尚不知頭冷 is a Chinese proverb that literally translates as: [One who has] not been a monk [does] not know [the feeling of a] cold head.
I need to explain that a Chinese Buddhist monk always has a shaved head, and thus a cold head in winter.

Figuratively, this means: One cannot know the true meaning of hardship until one has experienced it oneself.

This is an idiom in Chinese, so the figurative meaning is what people perceive when they hear or read this phrase. Just as in English, when someone says, "The grass is always greener," one will think about the idea of jealousy, rather than the quality of one’s lawn.