It's only an abstract idea.

这仅仅是一个抽象的概念。

youdao

An abstract idea or notion; a unit of thought.

一个抽象的观念或想法；一个思维单位。

youdao

Let us first find out what love is, not as an abstract idea but what it actually is.

我们首先来弄清爱是什么，不是一个抽象的概念而是爱实际上是什么。

youdao

If something is good just because it is pleasurable, what does it matter whether you have sort of an abstract idea of whether it is good by someone else's sense or not?

既然令人喜爱的事物就是好的，那么何必在乎,别人对它的感受如何，这般抽象的观念呢？

耶鲁公开课 - 公正课程节选

Kappos, rejecting a patent on weather derivatives because it covered an an abstract idea.

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But I think probably more importantly, it's the abstract idea of an ultimate authority figure, and to date I think we haven't changed out perception of that person from male to female, or without gender.

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The idea of becoming conscious of the subjectivity of our perceptions is an admittedly abstract one -- the stuff of philosophy and science fiction.

CNN: The power of perceptions: Imagining the reality you want