Herbert Croly, The Promise of American Life — Chapter IV (1909)
“ He could be bold and resolute, when defending a nationalistic interpretation of the Constitution against the Nullifiers or the Abolitionists; but when the slaveholders themselves became aggressive in policy and separatist in spirit, the courage of his convictions deserted him. If an indubitably Constitutional institution, such as slavery, could be used as an ax with which to hew at the trunk of the Constitutional tree, his whole theory of the American system was undermined, and he could speak only halting and dubious words. ”
