A triennial sacrificial tithe is inconceivable when it is remembered that the tithe is only an extension of the firstfruits.
The happiness before him appeared so inconceivable that if only he could attain it, it would be the end of all things.
We believe many things that we cannot conceive; as Mill said, the inconceivable is not the incredible; and the point of science is not what we can conceive but what we should believe on evidence.
If it had followed that route in the course of nature, it is inconceivable that it would not still be found on some portions of the route.
Moreover, even in the passages where the agreement with Polybius is most apparent, there are so many discrepancies and divergencies in detail, and so many unaccountable omissions and additions, as to render it inconceivable that he had the text of Polybius before him.