Causal: 因……故…… (Because — Literary)
因果复句：因……故……
Express cause and effect using the literary causal connectors 因 and 故
因 or 由于 introduces the cause, and 故 introduces the result. Both 因 and 故 are literary, classical-flavored words that elevate the register.
因 alone is more literary than 因为. 故 means "therefore" and is more concise and classical than 所以. This pattern appears in formal writing, legal texts, academic prose, and classical-influenced modern Chinese.
Lesson Targets
Podcast
Podcast: Causal: 因……故…… (Because — Literary) (因果复句：因……故……)
Listen to Jason & Amy explain the 因果复句：因……故…… pattern
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Understanding 因果复句：因……故……
You know 因为……所以 from elementary Chinese. Now you learn its literary ancestor: 因……故……. The character 因 means "because / due to" and 故 means "therefore / thus." Together they form an elegant cause-effect pair that sounds scholarly and refined. You encounter this pattern in newspaper editorials, academic papers, legal documents, and classical-flavored modern writing. 故 can also appear alone at the beginning of a sentence: 他深知此事不体面，故不敢说出来 (He knew this was disgraceful, and therefore dared not speak of it). Learning this pattern connects you to the literary tradition and will significantly improve your formal writing.
Key Points
- 因 (yīn) = "because / due to" — literary version of 因为.
- 故 (gù) = "therefore / thus" — literary version of 所以.
- 因……故 is the classical cause-effect pair, used in formal registers.
- 故 can stand alone: 故不敢说 (therefore dared not say).
- 故此 (gùcǐ) and 因此 (yīncǐ) are related formal connectors.
- This pattern is common in newspaper Chinese, legal texts, and academic writing.
- In everyday speech, stick with 因为……所以. Use 因……故 only for formal contexts.
Classical Chinese heavily relies on single-character function words. 因 and 故 are remnants of this tradition that survive in modern formal Chinese. Reading Chinese newspaper editorials is an excellent way to encounter this pattern naturally.
Key Vocabulary
Example Sentences
他深知此事不体面，故不敢说出来。
He was well aware that this matter was disgraceful, and therefore dared not speak of it.
他已远离了国内的生活，故不打算再回国。
He had long since left domestic life behind, and therefore had no plans to return.
因天气恶劣，航班全部取消。
Due to severe weather, all flights have been cancelled.
Common in announcements
因证据不足，故无法定罪。
Due to insufficient evidence, conviction is not possible.
Legal language
因其表现优异，故被提拔为部门主管。
Due to outstanding performance, he was promoted to department head.
此路因施工封闭，故请绕行。
This road is closed due to construction; please take a detour.
Common in official signs
Common Mistakes
Using 因……故 for mundane daily matters sounds absurdly formal, like saying "due to my hunger, I therefore proceeded to dine" in English. Use 因为……所以 for everyday speech.
Mixing registers: if you use literary 故, pair it with literary 因 (not the colloquial 因为). Maintain a consistent register.
The cause (因) must come first, followed by the result (故). Reversing the order is grammatically incorrect.
Practice Exercises
Tips & Tricks
When reading Chinese news, look for 因 and 故 — they appear in nearly every editorial and official announcement.
Keep register consistent: if you start with literary 因, finish with literary 故 — do not mix with colloquial 所以.
Notice that 因此 (yīncǐ) is a useful middle-ground word — more formal than 所以 but less literary than 故.
Practice rewriting news headlines using 因……故 to train your formal writing instinct.
Homework
Find three Chinese news articles and identify sentences using 因, 故, or 因此. Then write three original formal sentences using the 因……故 pattern on topics such as policy decisions, weather announcements, or organizational changes.