One of the major obstacles to the progress of political theory lies in the fact that people speak of rights without paying attention to the feasibility of their exercise. I propose to raise here some elementary problems relating to the right of speech. It is one of the basic tenets of our democratic political philosophy that all people (over a given age) have an equal right of speech. Making this right operational however gives rise to difficulties which have not been faced.I shall start out with a very simple problem, which moreover has the advantage of evoking familiar pictures: this is the chairman's problem. I find myself chairman of an assembly, and regard all participants as formally equal, which commits me to treating them equally. Feeling bound by this principle, I decide as follows: the duration of the meeting is m, the number of participants n: I shall give the floor to each participant for a time m/n; thus the equal right of speech will receive practical application. Assume that the meeting is to be crowned by a vote (the time of actual voting not figuring in m): before the participants cast their equal votes, they will have had equal opportunities to influence the voting, i.e., they shall have had, insofar as depends upon me, equal voices.Now if m the duration of the meeting (in speaking time) is three hours, and if n the number of participants is 12, my procedure is susceptible of being applied: it grants the floor to each participant for a quarter of an hour. This is not a long time but still it may be enough.