A mistake to think of fish - I was sick.
It had been a mistake to think that some of those people were different.
And yet it would be a mistake to think that he is not.
It had been a mistake to think that she could not be hurt again.
Indeed, However, it is a mistake to think that they act upon them.
It had been a mistake to think anything could change.
In fact, it may be a mistake to think of them as foreign words at all.
It would be a mistake to think that we can control its future.
It is a mistake to think that we are talking about their interests alone.
It may have been our mistake to think you were.