Sometimes ignorance of facts was better than knowledge.

Never was made a rasher generalisation, based on so absolute an ignorance of facts.

Proving ignorance of facts that one might or might not have known is impossible, unless one has been in a well-documented coma.

Enyos' withholding information from Jenny is echoed in Giles' frequent ignorance of facts the Watcher's Council deliberately withholds from him.

And as for my keeping you in ignorance of facts, you already interfere so persistently with my mental processes that I am disinclined to furnish you further grounds for speculation.

That's what the commission rather charitably called it - at best, the President's broad-stroke leadership that delegated most responsibility to subordinates; at worst, his inattention to detail and ignorance of facts.

Moreover, in the interests of the pupil a balance needs to be struck between the extremes of over-preoccupation with the medical aspects of the pupil's visual condition and ignorance of facts that could help the teacher to understand the child's special needs and find ways to fulfil them.