Elder Porphyrios: On the Means of Preserving Inner Peace
To preserve inner peace: First of all, keep your outer senses in order and flee all licentiousness in your external conduct, – namely, neither look, speak, gesticulate, walk nor do anything else with agitation, but always quietly and decorously. Accustomed to behave with decorous quietness in your external movements and actions, you will easily and without labour acquire peace within yourself, in the heart; for, according to the testimony of the fathers, the inner man