Goose in Chinese / Japanese...

In 632 BC, Duke Wen of the Kingdom of Jin was about to lead an army against the forces of the Kingdom of Chu.
The Duke asked one of his advisers, Jiu Fan, how they could win the impending battle, as they were drastically outnumbered.
Jiu Fan said, “All is fair in war,” and suggested a plan of dishonorable tactics (cheating).
The Duke was unsure of this advice, so he asked another adviser, Yong Ji, who replied, “If you catch fish by draining the pond, you can certainly get all the fish. But there will be no fish the following year. You can cheat this one time in battle, but such tactics can only be used once, as the enemy will be wise in future encounters.”

The Duke heard the words of his wiser adviser but cheated to gain victory in the battle. However, he rewarded Yong Ji more than Jiu Fan at the victory celebration, stating that while Jiu Fan's advice gained one victory, the wise words of Yong Ji would last forever.

This Chinese idiom/proverb is still used, over 2600 years later to remind people not to burn bridges, cheat, or dishonor themselves in exchange for a short-term gain while sacrificing the future.

竭澤而漁 is very similar to the meaning of the English phrase, “Kill the goose that lays the golden eggs.”

天鵝 is one of a few titles that can mean “swan” in Chinese.

This one can be literally translated as “heavenly goose.”

雁 is the single character for wild goose in Chinese, Japanese, and Korean.

沈魚落雁 is an old proverb that literally means “fish sink, goose alights.”

...But this takes some explaining. This is a proverb from Zhuangzi (莊子), who lived in the late 4th century BC.

This figuratively refers to female beauty that is so captivating that even the birds and beasts take notice.

Perhaps a better and more accurate way to describe this is to say that it speaks of the charms of a uniquely beautiful woman who is so beautiful that fish stay on the bottom of the water and flying wild geese fall from the sky in shame.

This proverb is so famous that it is also known and used in Japan (same characters, different pronunciation).

Note: This can also be written 沉魚落雁 instead of 沈魚落雁 (just the first character varies slightly).