Bahá'í psychologists will “make great strides in the development” of the science of psychology - 6 February 1973

You are already a qualified practitioner in your field, and no doubt you give advice on the basis of what you have learned from study and experience – a whole fabric of concepts about the human mind, its growth, development and proper functioning, which you have learned and evolved without reference to the teachings of Bahá'u'lláh. Now, as a Bahá'í, you know that what Bahá'u'lláh teaches about the purpose of human life, the nature of the human being and the proper conduct of human lives, is divinely revealed and therefore true. However, it will inevitably take time for you not only to study the Bahá'í teachings so that you clearly understand them, but also to work out how they modify your professional concepts. This is, of course, not an unusual predicament for a scientist. How often in the course of research is a factor discovered which requires a revolution in thinking over a wide field of human endeavour. You must be guided in each case by your own professional knowledge and judgement as illuminated by your growing knowledge of the Bahá'í teachings; undoubtedly you will find that your own understanding of the human problems dealt with in your work will change and develop and you will see new and improved ways of helping the people who come to you. Psychology is still a very young and inexact science, and as the years go by Bahá'í psychologists, who know from the teachings of Bahá'u'lláh the true pattern of human life, will be able to make great strides in the development of this science, and will help profoundly in the alleviation of human suffering. 

- The Universal House of Justice  (From a message dated 6 February 1973, published in "Messages from the Universal House of Justice, 1968-1973" (Wilmette: Bahá'í Publishing Trust, 1976)