"Peguy's Catholicism was closely allied with his love of France. Of him, as also of Psichari, it might almost be said that they were Catholics because they were Frenchmen. A non-Catholic Frenchman seemed a monstrosity, something cut off from the true life of his country. Some Catholicism is international or indifferent to country, with almost the motto, 'What matters country so long as the Church survives?' But that is not the Catholicism of these young Frenchmen, nor the Catholicism of the recent religious revival." – Rawlinson, Gerald Christopher (1917). "Charles Péguy," in Recent French Tendencies from Renan to Claudel. London: Robert Scott, p. 121.
"In France the classic type of the fervent but non-practising Catholic was probably best represented by Charles Péguy". — Kuehnelt-Leddihn, Erik von (1952). Liberty or Equality. Caldwell, Idaho: The Caxton Printers, Ltd., p. 194.