If we were faultless we should not be so much annoyed by the defects of those with whom we associate. - Francois de Fenelon
Perhaps I occasionally sought to give, or inadvertently gave, to the student a sense of battle on the intellectual battlefield. If all you do is to give them a faultless and complete and uninhabited architectural masterpiece, then you do not help them to become builders of their own. - Carl-Gustaf Rossby