The Buddha explains in the Samanamandika Sutta, purity of livelihood as an aspect of sila. In this Sutta, that wholesome verbal and physical deeds and as well as purity of livelihood are included in morality ‘Ajiva parisuddha’ or purity of livelihood denotes use of wholesome verbal and physical actions as means of livelihood and this is same as right livelihood of the Noble Eightfold Path. According to the Sabbasava Sutta clothes, food, shelter and medicine are Professionals’ basic requirements. Clothes are necessary to protect oneself from cold and heat, flies and mosquitoes, wind and rain, to cover one’s nakedness and so on. In the last part I expressed Buddhism and Economic Development, which means economic based on Buddhism, the Buddhist doctrine and development, and ethic of wealth: peace with economical progress. There are of course, multiple and complex factors which are conducive to peace, both in the "inner" and "outer” senses of the term. We confront with the challenge to focus the attention on one fundamental issue, namely, the absence of spirituality and moral values in the economic realm. This chapter has generously used the doctrine as stated in Dhammacakkapavattanasutta, Mahaparinibbanasutta, Paticcasamuppada, Mahanidana Sutta, Kutadanta Sutta, Agganna Sutta, and Metta Sutta, etc.