expression
should do; ought to do; must do
Classical Japanese expression equivalent to modern するべきだ or しなければならない. Used in literary, formal, or archaic contexts. Often seen in set phrases or historical texts.
See also: べし
君子は言を以て人を挙げず、人を以て言を廃せず、と古人も言えるが、まさに然るべし。
As the ancients said, 'The superior man does not promote a man on account of his words, nor does he put aside good words because of the man.' Indeed, it should be so.
この難局を乗り切るには、一致団結して事に当たるべし。
To overcome this difficult situation, we must unite and tackle it together.