论虚概念

把虚概念理解为“所指称的对象不存在于客观世界的概念”，是不对的，将导致把“理想模型”等本该是实概念的概念纳入其中，也把本该是虚概念的如“地心说”中的概念却排除在外。实际上，对象有虚实，属性也有虚实。实对象、实属性，属于实概念；虚对象、实属性，也属于实概念；实对象、虚属性，属于虚概念；虚对象、虚属性，是虚概念。可见，无论对象虚实，只要所指称的对象的主要特征所反映的属性不是客观的概念就是虚概念。

On Fictional Concepts

It is not correct to comprehend the concept of fictional object as an unreal concept.Objects of concepts can be separated into real and unreal,and attributes of objects can also be separated into real and unreal.A concept of real object and real attribute is a real concept,and a concept of fictional object and real attribute is a real concept too.A concept of real object and unreal attribute is an unreal concept,and a concept of visionary object and unreal attribute is also an unreal concept.