Masonry has its decalogue, which is a law to its Initiates. These are its Ten Commandments:

I. God is the Eternal, Omnipotent, Immutable WISDOM and Supreme INTELLIGENCE and Exhaustless Love. Thou shalt adore, revere, and love Him ! Thou shalt honour Him by practising the virtues!

II. Thy religion shall be, to do good because it is a pleasure to thee, and not merely because it is a duty. That thou mayest become the friend of the wise man, thou shalt obey his precepts ! Thy soul is immortal ! Thou shalt do nothing to degrade it !

III. Thou shalt unceasingly war against vice! Thou shalt not do unto others that which thou wouldst not wish them to do unto thee ! Thou shalt be submissive to thy fortunes, and keep burning the light of wisdom !

IV. Thou shalt honour thy parents ! Thou shalt pay respect and homage to the aged! Thou shalt instruct the young! Thou shalt protect and defend infancy and innocence !

V. Thou shalt cherish thy wife and thy children! Thou shalt love thy country, and obey its laws!

VI. Thy friend shall be to thee a second self ! Misfortune shall not estrange thee from him ! Thou shalt do for his memory whatever thou wouldst do for him, if he were living!

VII. Thou shalt avoid and flee from insincere friendships ! Thou shalt in everything refrain from excess. Thou shalt fear to be the cause of a stain on thy memory!

VIII. Thou shalt allow no passions to become thy master ! Thou shalt make the passions of others profitable lessons to thyself! Thou shalt be indulgent to error !

IX. Thou shalt hear much: Thou shalt speak little: Thou shalt act well ! Thou shalt forget injuries! Thou shalt render good for evil ! Thou shalt not misuse either thy strength or thy superiority !

X. Thou shalt study to know men; that thereby thou mayest learn to know thyself ! Thou shalt ever seek after virtue ! Thou shalt be just! Thou shalt avoid idleness !

But the great commandment of Masonry is this: "A new commandment give I unto you: that ye love one another! He that saith he is in the light, and hateth his brother, remaineth still in the darkness."

Such are the moral duties of a Mason. But it is also the duty of Masonry to assist in elevating the moral and intellectual level of society; in coining knowledge, bringing ideas into circulation, and causing the mind of youth to grow; and in putting, gradually, by the teachings of axioms and the promulgation of positive laws, the human race in harmony with its destinies.

Albert Pike - Morals And Dogma