逻辑的实证主义

例句：

1. 1. Positivism argues that facts are the only true knowledge.
   实证主义认为事实是真正的知识。
2. 2. Empiricism is a philosophy of science that emphasizes experience and observation.
   经验主义是一种科学哲学，强调经验和观察。
3. 3. Materialism holds that matter is the fundamental substance of the universe.
   唯物主义认为物质是宇宙的基本实体。