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.

This literally translates as: Without having experienced the cold of winter, one cannot appreciate the warmth of spring.

Figuratively, this means: One cannot truly appreciate happiness without having gone through hardship.

There are many contrasts in life. One simply cannot fully know what joy is without having experienced misery, difficulty, and pain. How could you explain “light” if you did not have “darkness” to compare it to?

Embrace hardship, as it makes the good times seem even better.

百煉才成鋼 / 百煉纔成鋼 literally translates as: Only after much tempering is steel produced.

Figuratively, this means: True character must be tested in hardship.

This is a mild form of saying, “Whatever doesn't kill me, makes me stronger.”

羊 is the character for goat or sheep in Chinese, old Korean, and Japanese.

If you were born in the year of the goat (sheep), you . . .

Are sophisticated and considerate
Can always find the best solution to problems.
Are tolerant.
Are not afraid of hardship.
Know how to save money (thrifty).

See also our Chinese Zodiac page.

苦海無邊, 回頭是岸 can be translated almost directly as “The sea of bitterness has no bounds, turn your head to see the shore.”

Often this proverb refers to how Buddhist enlightenment can allow one to shed off the abyss of worldly suffering. But it can apply to other religions. If you find yourself trapped in the hardship of this worldly life, take a new turn, and seek a path to salvation.

愛別離苦 is a Buddhist term that refers to “the pain of separation from loved ones,” or “the suffering of being separated from those whom one loves.”

If you translate each character separately, you get, “love(s) separated [and] departed [yields] pain.”

The pain character can also be defined as anguish; suffering; distress; anxiety; worry; trouble; difficulty; hardship; bitterness; to suffer; anguish; distress; anxiety; worry; trouble; difficulty; bitterness; unhappiness; or misery.

In Chinese, Japanese Kanji, and old Korean Hanja, 克服 means “overcome” (as in overcoming hardships, etc.). It can also mean to conquer, to put up with, or to endure.
This can be a conquest over a problem, disease, handicap, poverty, or illness. Other definitions include overcoming, bringing under control, subjugation, or victory over something.

This can be used as an inspirational wall scroll to remind someone to try to overcome difficulties that may arise in life.

不當和尚不知齋戒苦 literally translates as:
[One who has] not been a monk [does not] know the suffering of [being on a] vegetarian diet.

This is a bit like the “walk a mile in another man's shoes” saying. Basically, it's about you cannot fully understand the plight of others until you experience it yourself.