The ancients summed up the whole of human wisdom in the maxim, Know Thyself, and certainly there is for an individual no more important as there is no more difficult knowledge, than knowledge of himself, whence he comes, whither he goes, what he is, what he is for, what he can do, what he ought to do, and what are his means of doing it.
Nations are only individuals on a larger scale.
They have a life, an individuality, a reason, a conscience, and instincts of their own, and have the same general laws of development and growth, and, perhaps, of decay, as the individual man. Equally important, and no less difficult than for the individual, is it for a nation to know itself, understand its own existence, its own powers and faculties, rights and duties, constitution, instincts, tendencies, and destiny. A nation has a spiritual as well as a material, a moral as well as a physical existence, and is subjected to internal as well as external conditions of health and virtue, greatness and grandeur, which it must in some measure understand and observe, or become weak and infirm, stunted in its growth, and end in premature decay and death. Among nations, no one has more need of full knowledge of itself than the United States, and no one has hitherto had less. It has hardly had a distinct consciousness of its own national existence, and has lived the irreflective life of the child, with no severe trial, till the recent rebellion, to throw it back on itself and compel it to reflect on its own constitution, its own separate existence, individuality, tendencies, and end.