Not without good reason does our catechism assert that Masonry contains “many and invaluable secrets.” But these of course are not the formal and symbolic signs, tokens and words communicated ceremonially to candidates; they are rather those secrets which we instinctively keep locked up in the recesses and safe repository of our hearts; secrets of the deep and hidden things of the soul, about which we do not often talk, and which, by a natural instinct, we are not in the habit of communicating to any but such of our brethren and fellows as share with us a common and a sympathetic interest in the deeper problems and mysteries of life.

W L Wilmshurst, The Meaning of Masonry, Chapter II Masonry as a Philosophy