实证主义者

例句：

1. 1. He is a firm believer in the power of empirical evidence.
   他坚信实证证据的力量。
2. 2. Positivism has been a controversial topic in philosophy for decades.
   实证主义在哲学上几十年来一直是有争议的话题。
3. 3. Empiricism holds that knowledge comes from experience and observation.
   经验主义认为知识来自于经验和观察。