Lysander Spooner, No Treason: II:

As all the different votes are given secretly (by secret ballot), there is no legal means of knowing, from the votes themselves, who votes for, and who against, the Constitution. Therefore, voting affords no legal evidence that any particular individual supports the Constitution. And where there can be no legal evidence that any particular individual supports the Constitution, it cannot legally be said that anybody supports it. It is clearly impossible to have any legal proof of the intentions of large numbers of men, where there can be no legal proof of the intentions of any particular one of them.

Lysander Spooner, No Treason: IX:

What is the motive to the secret ballot? This, and only this: Like other confederates in crime those who use it are not friends, but enemies; and they are afraid to be known, and to have their individual doings known, even to each other. They can contrive to bring about a sufficient understanding to enable them to act in concert against other persons; but beyond this they have no confidence, and no friendship, among themselves. In fact, they are engaged quite as much in schemes for plundering each other, as in plundering those who are not of them. And it is perfectly well understood among them that the strongest party among them will, in certain contingencies, murder each other by the hundreds of thousands (as they lately did do) to accomplish their purposes against each other. Hence they dare not be known, and have their individual doings known, even to each other. And this is avowedly the only reason for the ballot: for a secret government; a government by secret bands of robbers and murderers. And we are insane enough to call this liberty! To be a member of this secret band of robbers and murderers is esteemed a privilege and an honor! Without this privilege, a man is considered a slave; but with it a free man! With it he is considered a free man, because he has the same power to secretly (by secret ballot) procure the robbery, enslavement, and murder of another man, and that other man has to procure his robbery, enslavement, and murder. And this they call equal rights!

If any number of men, many or few, claim the right to govern the people of this country, let them make and sign an open compact with each other to do so. Let them thus make themselves individually known to those whom they propose to govern. And let them thus openly take the legitimate responsibility of their acts. How many of those who now support the Constitution, will ever do this? How many will ever dare openly proclaim their right to govern? or take the legitimate responsibility of their acts? Not one!