Judaism boasts of no exclusive revelation of eternal truths that are indispensable to salvation, of no revealed religion in the sense in which that term is usually understood.
For art to exist, for any sort of aesthetic activity to exist, a certain physiological precondition is indispensable: intoxication.
Purity of personal life is the one indispensable condition for building up a sound education.
A doctrine serves no purpose in itself, but it is indispensable to have one if only to avoid being deceived by false doctrines.
So if a college education is indispensable, the challenge as I see it is how to make it more accessible.
Vigorous independent and critical media are indispensable in a democracy.
A man’s ‘original and natural right’ to make all contracts that are ‘intrinsically obligatory,’ and to coerce the fulfillment of them, is one of the most valuable and indispensable of all human possessions.
Curiosity is idle only to those who fail to realize that it may be a very rare and indispensable thing.
Historical facts are the vital framework around which non-fiction writers construct their narratives; they are, quite simply, indispensable.
The graveyards are full of indispensable men.