"Be kind to all people, love humanity, consider all mankind as your relations and servants of the most high God."

"Consider the animosity and hatred existing today between the various nations of the world. What disagreements and hostilities arise, what warfare and contention, how much bloodshed, what injustice and tyranny! Just now there is war in eastern Turkey, also war between Turkey and Italy. Nations are devoted to conquest and bloodshed, filled with the animus of religious hatred, seeking the good pleasure of God by killing and destroying those whom in their blindness they consider enemies. How ignorant they are! That which is forbidden by God they consider acceptable to Him. God is love; God seeketh fellowship, purity, sanctity and long-suffering; these are the attributes of Divinity. Therefore, these warring, raging nations have arisen against Divinity, imagining they are serving God. What gross ignorance this is! What injustice, blindness and lack of realization! Briefly, we must strive with heart and soul in order that this darkness of the contingent world may be dispelled, that the lights of the Kingdom shall shine upon all the horizons, the world of humanity become illumined, the image of God become apparent in human mirrors, the law of God be well established and that all regions of the world shall enjoy peace, comfort and composure beneath the equitable protection of God. My admonition and exhortation to you is this: Be kind to all people, love humanity, consider all mankind as your relations and servants of the most high God. Strive day and night that animosity and contention may pass away from the hearts of men, that all religions shall become reconciled and the nations love each other so that no racial, religious or political prejudice may remain and the world of humanity behold God as the beginning and end of all existence. God has created all, and all return to God. Therefore, love humanity with all your heart and soul. If you meet a poor man, assist him; if you see the sick, heal him; reassure the affrighted one, render the cowardly noble and courageous, educate the ignorant, associate with the stranger. Emulate God. Consider how kindly, how lovingly He deals with all, and follow His example. You must treat people in accordance with the divine precepts—in other words, treat them as kindly as God treats them, for this is the greatest attainment possible for the world of humanity."

`Abdu'l-Bahá, The Promulgation of Universal Peace, pp. 290-291

29 August 1912
(excerpt from) Talk at Home of Madame Morey 
34 Hillside Avenue, 
Malden, Massachusetts