b) In laws, treaties, wills, maxims, etc.; as,—
cōnsulēs summum jūs habentō, the consuls shall have supreme power;
hominem mortuom in urbe nē sepelītō, no one shall bury a dead body in the city;
amīcitia rēgī Antiochō cum populō Rōmānō hīs legibus et condiciōnibus estō, let there be friendship between Antiochus and the Roman people on the following terms and conditions;
quārtae estō partis Mārcus hērēs, let Marcus be heir to a fourth (of the property);
ignōscitō saepe alterī, numquam tibi, forgive your neighbor often, yourself never.
2. Except with the Future Imperative the negative is not used in classical prose. Prohibitions are regularly expressed in other ways. See [§ 276], b.
3. Questions in the Indicative introduced by quīn (why not?) are often equivalent to an Imperative or to the Hortatory Subjunctive; as,—
quīn abīs, go away! (lit. why don't you go away?);
quīn vōcem continētis, keep still! (lit. why don't you stop your voices?);
quīn equōs cōnscendimus, let us mount our horses (lit. why do we not mount our horses?)
MOODS IN DEPENDENT CLAUSES.
Clauses of Purpose.
[282]. 1. Clauses of Purpose are introduced most commonly by ut (utī), quō (that, in order that), nē (in order that not, lest), and stand in the Subjunctive, as,—
edimus ut vīvāmus, we eat that we may live;
adjūtā mē quō hōc fīat facilius, help me, in order that this may be done more easily;
portās clausit, nē quam oppidānī injūriam acciperent, he closed the gates, lest the townspeople should receive any injury.
a. Quō, as a rule, is employed only when the purpose clause contains a comparative or a comparative idea. Occasional exceptions occur; as,—