December 28

Whilst in the Prison of 'Akká, We revealed in the Crimson Book that which is conducive to the advancement of mankind and to the reconstruction of the world. The utterances set forth therein by the Pen of the Lord of creation include the following which constitute the fundamental principles for the administration of the affairs of men:

First: It is incumbent upon the ministers of the House of Justice to promote the Lesser Peace so that the people of the earth may be relieved from the burden of exorbitant expenditures. This matter is imperative and absolutely essential, inasmuch as hostilities and conflict lie at the root of affliction and calamity.

Second: Languages must be reduced to one common language to be taught in all the schools of the world.

Third: It behoveth man to adhere tenaciously unto that which will promote fellowship, kindliness and unity.

Fourth: Everyone, whether man or woman, should hand over to a trusted person a portion of what he or she earneth through trade, agriculture or other occupation, for the training and education of children, to be spent for this purpose with the knowledge of the Trustees of the House of Justice.

Fifth: Special regard must be paid to agriculture. Although it hath been mentioned in the fifth place, unquestionably it precedeth the others. 
(Baha’u’llah, ‘Tablets of Bahá'u'lláh Revealed after the Kitáb-i-Aqdas’; The Compilation of Compilations, vol. III, Economics, Agriculture, and Related Subjects)