ABSTRACT
Mankind would never have risen above the most primitive level of subsistence if every man had tried to do everything for himself. Broadly speaking the condition of any work of any difficulty or importance being well done is that it should be left to the special people who can concentrate on it while leaving other people to do other work for them. Very few important jobs can be carried on efficiently if they are taken up at casual intervals and then dropped again. The authors must now consider a little more in detail the kind of qualifications that the argument requires in those to whom supreme power is to be entrusted. It is, of course, the assumption of the whole argument that they should be people who were prepared to make the well-being of the whole community their supreme aim. But good intentions are not enough, and discussion has stressed the need for special ability, special training, and special knowledge.
