1. From ontology to practicalism, it signifies that fundamental changes have taken place in the method on human beings in philosophy.
从本体论到实践论，标志着哲学论人的方法发生了根本性的变化。
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2. From a historical perspective, the author discusses the different views on "reality" from classical practicalism to new practicalism and their inner changes.
3. From a historical perspective, the author discusses the different views on "reality" from classical practicalism to new practicalism and their inner changes.
