jurisprudence | Jurisprudence | Principles of Nature | Principles of Economics | Institute in Basic Life Principles | Harrison's Principles of Internal Medicine | United Nations Guiding Principles on Business and Human Rights | Three Principles of the People | Principles of Neural Science | Principles of Mathematical Logic | Principles of Lust | Principles of Geology | ''Principles of geology'' | Principles of European Contract Law | Principles of Compiler Design | Paris Principles | Panton Principles | On the Principles of Political Economy and Taxation | Lascelles Principles | Ja'fari jurisprudence | Imperial School of Jurisprudence | Five Principles of Peaceful Coexistence | 1934 Declaration of Principles |
Having completed all the ternary grades of the seminary, he attended Khârij and the principles of jurisprudence classes of Grand Ayatollahs Vahid Khorasani, Ali Meshkini, Hosein Ali Montazeri (all in Qom), and Seyyed Ali Khamenei and Mojtaba Tehrani (in Tehran) for a total of twenty five years.
He holds a Ph.D. in Islamic Shariah (law), with specialization in jurisprudence (Fiqh) and taught Islamic Shariah and Jurisprudence at King Saud University, Saudi Arabia, for six years and dealt with various subjects such as principles of jurisprudence (Usool Al-Fiqh), Islamic Culture, Islamic Political Thought, Islamic movements and the Fiqh of Organization.