Pope John XXIII
Pacem in Terris §149
Scientific Competence, Technical Capacity and Professional Experience
149 And yet even this must be reckoned insufficient to bring the relationships of daily life into conformity with a more human standard, based, as it must be, on truth, tempered by justice, motivated by mutual love, and holding fast to the practice of freedom.
Source: Pacem in Terris (Vatican.va)