Mater si, magistra no is a phrase meaning that Catholics need not follow the teachings of the Church on social policy; its literal meaning is "Mother yes, teacher no". It was coined in 1961, in direct response to the papal encyclical Mater et Magistra, as a reference to the then-current anti-Castro slogan, "Cuba si, Castro no." The New Oxford Review has described the principle of "mater si, magistra no" as "'pick-and-choose Catholicism".