practical certainty造句

yet we have to admit we cannot demonstrate its truth beyond all possible cavil and, further, we have to recognize that the communication which we have with other persons may be less complete than we imagine, but in spite of all this, we feel that it is more than a reasonable assumption-it is a practical certainty-that other persons exist and that we are able to communicate our thoughts to them
但是，我们必得承认，对此真实现象的证明不可能达到无懈可击，而且我们还需要进一步了解，我们跟他人的交谈，可能不像我们想象的那么完备，可是，尽管有这些顾虑，我们对于他人的存在，以及我们能够把自己的思想传达给他人之类的认定，觉得已经超出合乎常理的假定??它实际上是毫无疑问的事实。
It's difficult to find practical certainty in a sentence. 用practical certainty造句挺难的