Ever the maverick, always the outsider, Mr. Grass is, of course, used to being impugned.
Jay said: "In my judgment it is obvious that leaders at the school conspicuously failed in allowing these books to enter, or re-enter, the library, and the report's assessment to that effect cannot be impugned".
The judge concluded that Mr Balls's decision to remove Ms Shoesmith "cannot be impugned on the grounds of unfairness".
Secondly, when funding for homeopathy research became available relatively recently, the pool of potential homeopathy-savvy investigators was generally weak in medical research knowledge or experience, leading to the publication of studies that could be impugned on scientific grounds.
The 13-member panel was fictional, formulated in a columnist's post-Oregon drive back to the hotel, but included so many upstanding citizens its credibility could not be impugned.
Another declared, "Before impugning an opponent's motives, even when they legitimately may be impugned, answer his arguments".
His motives will be impugned, and unnecessary controversies will hinder presidential decision-making".
But as a philosopher, Sidney Hook, once said, "before impugning an opponent's motives, even when they legitimately may be impugned, answer his arguments".
Though his anti-imperial bias in attributing motives is plain, his facts can rarely be impugned; and his evocation of the terrors of tyranny is unforgettable.
The motives of neither should be impugned".
