From her book, The Death And Life Of Great American Cities. As usual it is important to remember that she wrote this in 1961.
“…it is understandable that men who were young in the 1920’s were captivated by the vision of the freeway Radiant City, with the specious promise that it would be appropriate to an automobile age. At least it was then a new idea; to the men of the generation of New York’s Robert Moses, for example, it was radical and exciting in the days when their minds were growing and ideas forming. Some men tend to cling to old intellectual excitements, just as some belles, when they are old ladies, still cling to the fashions and coiffures of their exciting youth. But it is harder to understand why this form of arrested mental development should be passed on intact to succeeding generations of planners and designers. It is disturbing to think that men who are young today, men who are being trained now for their careers, should accept on the grounds that they must be “modern” in their thinking, conceptions about cities and traffic which are not only unworkable, but to which nothing new of any significance has been added since their fathers were children.”