Sir Peter Laurie passes so quickly from hyper-loyalty to downright treason, that he is an insolvable problem.
To the men who secured his nomination and election he was an insolvable mystery.
This was the insolvable problem that now faced the first congress of the anarchists.
Manifestly, if the first of these problems is insolvable, the second is insolvable also.
When there is a reasonable and insolvable doubt as to the amount of reparation to be made, it is just that such a doubt favor us.
There are problems in metaphysics as there are in mathematics, which may be demonstrated to be insolvable.
It is something like the insolvable question as to which came first, the hen or the egg.
One poor fellow threw in his empty purse, and another a bundle of counterfeit or insolvable bank-notes.
As for her words, they were like her conduct, an insolvable mystery, for which he had no key.
The problem, thus propounded, was insolvable; but the nation propounded it thus.