The utopian dream of the Enlightenment can be summed up by five words: reason, nature, happiness, progress, and liberty. It was thoroughly secular in its thinking. The humanistic elements which had risen during the Renaissance came to flood tide in the Enlightenment. Here was man starting from himself absolutely.How Should We Then Live?, 132
In 1791 fifteen hundred English Catholics signed a statement denying that papal infallibility was a dogma of the Roman Catholic Church. However, the opposition of the Gallicans was gradually overcome, and in 1870 the Vatican Council declared that 'the Roman Pontiff... enjoys fully that infallibility which the divine Redeemer wished his Church to have in defining doctrine touching faith and morals... consequently such definitions of the Roman Pontiff are of themselves unchangeable and are not to be changed through the approval of the Church.' The History of Christian Doctrines (239-240)