Sentence examples for one must either be from inspiring English sources

To get on to the private island, one must either be staying at the hotel or have a reservation at one of the resort's restaurants.

About the only thing they can agree on is that, in most cases, one must either be asleep or in a semi-somnambulent state listening to one's spouse drone on and on, in order to dream.

But (b) if it is equally possible also to assert all that it is possible to deny, one must either be saying what is true when one separates the predicates (and says, for instance, that a thing is white, and again that it is not-white), or not.

Any attempt to derive the principles of an old theory from those of a new one must either be unsuccessful or must effect a change in the meaning of the old theory's terms.

In consequence, one must either be happy with the assumption, in theory, of a model that likely has shared trends at a highly aggregated level or with an estimation procedure in which county-level observations are often entered without consistent controls for geographic trends.

To join, one must either be the son of a Stonecutter or save the life of a Stonecutter.

Hence, one must either assume that waves are directly generated at the dissipation scales, as suggested in models with chromospheric and transition region reconnection, or small scales must be reached through dynamical evolution.

Normal biomarkers are inherently unsuitable in a positive search for disorder; instead one must either use abnormal markers or be prepared to search negatively, i.e., to look for and somehow validate the rare absence of a normal marker.

It has been argued under physicalism that one must either believe that anyone including oneself might be a zombie, or that no one can be a zombie following from the assertion that one's own conviction about being (or not being) a zombie is a product of the physical world and is therefore no different from anyone else's.

Thus one must either relax the condition for being "purely inferential" or add more structure (see especially Belnap 1982).

The traditional view is that one must either restrict Basic Law V or restrict the Comprehension Principle for Concepts.