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The intrinsic or fundamental nature of something; the essential part or quality that defines it.
这项政策的实质是鼓励创新。
The essence of this policy is to encourage innovation.
我们必须抓住问题的实质，才能找到解决方案。
We must grasp the essence of the problem to find a solution.
Often used in contrast to superficial or formal aspects.
'实质' focuses on the inner truth or essence, while '形式' refers to the outward appearance or structure. For example, '形式合法' (formally legal) vs. '实质合法' (legally substantive).
When analyzing a situation, ask: 'What is the real nature of this issue?' (实质是什么？) rather than just its surface (表面是什么？).
Composed of 实 (shí, 'real', 'solid') and 质 (zhì, 'quality', 'substance'). The compound dates back to Classical Chinese, emphasizing the tangible or fundamental nature of something.
Used in both abstract and concrete contexts. In legal or academic writing, it often refers to the underlying truth or reality beneath appearances.