id author title date pages extension mime words sentence flesch summary cache txt _005196857 Catholic Church. Pope (1958-1963 : John XXIII). Pacem in terris : encyclical letter of Pope John XXIII on peace on earth. 1963 .txt text/plain 16196 683 61 For experience has taught us that, unless these authorities take suitable action with regard to economic, political and cultural matters, inequalities be- tween citizens tend to .become more and more widespread, especially in the modem world, and as a result human rights are rendered totally ineffective, and the fulfilment of duties is compromised. 51 Characteristics of the Present Day In modern times, where there is a question of organizing political communities juridically, there is observable first of all the tendency to write in concise and limpid phraseology a charter of fundamental human rights, which is, as often as not, inserted in State constitutions or is an integral part of them. cache/_005196857.txt txt/_005196857.txt