由此 (from this)

• Pinyin: yóucǐ
• Formation: 由此 + Result Clause / 由此可见 + Conclusion
• Hanzi breakdown: 由 = 田 (field) with a vertical stroke (path through); 此 = 止 (stop) + 匕 (spoon/person)

Meaning

由此 (yóucǐ) means 'from this,' 'hence,' or 'as a result of this.' It connects a preceding fact or event to its logical consequence, implication, or conclusion.

由此 is a formal connective that links a cause, basis, or premise to the result or inference that follows. It is more literary than 因此 (therefore) and carries a stronger sense of logical derivation rather than simple causation. While 因此 emphasizes 'because of this,' 由此 emphasizes 'starting from this point' — the consequence grows organically out of the premise. It frequently appears in academic writing, news commentary, and formal speeches. 由此可见 (from this one can see) is a very common fixed phrase used to draw conclusions.

Examples

1. 他连续三年获得最佳销售奖，由此被提拔为部门经理。 He won the best salesperson award three years in a row, and was hence promoted to department manager.
2. 研究数据表明空气质量持续恶化，由此可见环保政策亟需加强。 Research data shows that air quality has continued to deteriorate; from this we can see that environmental policies urgently need strengthening.
3. 这次合作非常成功，由此双方建立了长期的伙伴关系。 This collaboration was very successful, and from it both sides established a long-term partnership.

Usage Guide

Context: written, academic, news

Tone: analytical

Do Say

• 市场需求大幅下降，由此引发了整个行业的结构调整。
• 由此可见，仅靠技术进步并不能解决所有社会问题。
• 她从小就对音乐表现出浓厚的兴趣，由此走上了专业演奏的道路。

Don't Say

• 我今天很累，由此想早点睡觉。(由此 is too formal for casual personal reasons — use 所以 for everyday cause-and-effect) → 我今天很累，所以想早点睡觉。
• 由此他去了超市买菜。(由此 introduces significant implications or conclusions, not trivial everyday actions — use 然后 or 于是) → 然后他去了超市买菜。

Origin & History

由此 combines 由 (from, by means of) and 此 (this). In Classical Chinese, 由 meant 'to follow a path from,' so 由此 literally means 'following from this point,' indicating logical progression from premise to conclusion.

Cultural Context

Generation: All ages

Social background: Universal