On July 22, 1912, Abdu'l-Baha was in a train, riding to Boston. The following day, he would present a talk at Victoria Hotel. In light of the current unrest in Iran, it is interesting to see what Abdu'l-Baha said in that talk. Here is one passage from that talk:
"The essence of the Bahá’í spirit is that, in order to establish a better social order and economic condition, there must be allegiance to the laws and principles of government. Under the laws which are to govern the world, the socialists may justly demand human rights but without resort to force and violence. The governments will enact these laws, establishing just legislation and economics in order that all humanity may enjoy a full measure of welfare and privilege; but this will always be according to legal protection and procedure. Without legislative administration, rights and demands fail, and the welfare of the commonwealth cannot be realized. Today the method of demand is the strike and resort to force, which is manifestly wrong and destructive of human foundations. Rightful privilege and demand must be set forth in laws and regulations.
While thousands are considering these questions, we have more essential purposes. The fundamentals of the whole economic condition are divine in nature and are associated with the world of the heart and spirit. This is fully explained in the Bahá’í teaching, and without knowledge of its principles no improvement in the economic state can be realized. The Bahá’ís will bring about this improvement and betterment but not through sedition and appeal to physical force—not through warfare, but welfare. Hearts must be so cemented together, love must become so dominant that the rich shall most willingly extend assistance to the poor and take steps to establish these economic adjustments permanently. If it is accomplished in this way, it will be most praiseworthy because then it will be for the sake of God and in the pathway of His service. For example, it will be as if the rich inhabitants of a city should say, “It is neither just nor lawful that we should possess great wealth while there is abject poverty in this community,” and then willingly give their wealth to the poor, retaining only as much as will enable them to live comfortably."
The above passsage can be found in the book The Promulgation of Universal Peace.