(5) Another practical value of the motto lies in the implied contrast of virtue with expediency. Questions of expediency are questions of the best means to a given end; questions of virtue ask which ends are to be sought. Expediency asks, "How shall I do this?" Virtue asks, "Shall I do this or that?" The counsels of expediency are thus always relative to the value of the end, in itself unquestioned; "this is the thing to do IF such and such an end is right to seek." The counsels of virtue are absolute-"This is the best thing to do." It is rightly felt that in matters of right and wrong there is no "if" about it; you act not with relation to an end which may be chosen or rejected, on ulterior grounds. The only end to which virtue is the means is-the living of the best life. Virtue is the ultimate expediency. But it is well contrasted with all those secondary matters of debate for which we reserve the name "expediency." (6) Finally, the motto is practically useful in advising us not to rely upon calculation in the concrete emergency, but to fall back upon an already adopted code, to love virtue as one does the flag, and follow it unquestioningly, as the soldier does his general. We must be willing to accept guidance and leadership. But every one knows that the flag is but a symbol; that the general's word is authoritative because it serves the best interests of the country. And our impulsive allegiance to virtue, and love of it, would be a mere silly daydream and empty sacrifice were it not for its loyal safeguarding of human interests. Should we live "according to nature," and adjust ourselves to the evolutionary process?