He immediately retreated, only to discover his classic error in fighting mounted archers.
He always said the classic error was to pause in the doorway, looking down; most of those who did never jumped.
He could tell from the look on their faces that he'd just made a classic error.
Besides that, you have to realise that Sam made a classic error in his agreement with the chair.
But midway through the second period, Luongo committed a classic error.
We then made the classic error of cropping out the wrong man.
It is a classic error of military history.
It was a classic scientific error, this so-called triumph of rational thought over irrational thought.
Arguments that propose adaptive superiority as the basis for survival risk the classic error of circular reasoning.
It is a classic error in thinking, particularly, if I may say it, of the human sort.