The concluding words in Murray N. Rothbard‘s book “The Case For a One Hundred Percent Gold Dollar” (pp. 71f):

There is no gainsaying the fact that this suggested program will strike most people as impossibly “radical” and “unrealistic”; any suggestion for changing the status quo, no matter how slight, can always be considered by someone as too radical, so that the only thoroughgoing escape from the charge of impracticality is never to advocate any change whatever in existing conditions.
But to take this approach is to abandon human reason, and to drift in animal- or plant-like manner with the tide of events. As Professor Philbrook pointed out in a brilliant article some years ago, we must frame our policy convictions on what we believe the best course to be and then try to convince others of this goal, and not include within our policy conclusions estimates of what other people may find acceptable. For someone must propagate the truth in society, as opposed to what is politically expedient. If scholars and intellectuals fail to do so, if they fail to expound their convictions of what they believe the correct course to be, they are abandoning truth, and therefore abandoning their very raison d’etre. All hope of social progress would then be gone, for no new ideas would ever be advanced nor effort expended to
convince others of their validity.