We must not be deterred by the possible scarcity of native professors, able to impart the indispensable knowledge.
"The Operatic Problem"
William Johnson Galloway
The scheme was mainly urged, of course, in the interests of a sounder distribution of wealth; but Lassalle contended that it would also increase production; and it is important to remember that he says it would not otherwise be economically justifiable, because "an increase of production is an indispensable condition of every improvement of our social state."
"Contemporary Socialism"
John Rae
The quantity of means of life cannot be reduced below the minimum that is physically indispensable to sustain the labourer for the day, and the term of labour cannot be stretched beyond the labourer's capacity of physical endurance.
"Contemporary Socialism"
John Rae