Rajesh Ranjan Tiwari is a Professor in the Department of Philosophy at Tilka Manjhi Bhagalpur University, Bhagalpur, India. He has specialised in the field of Philosophy of Science and Symbolic Logic. His areas of interest are Philosophy of science, Logic, Applied Ethics and Gandhian Philosophy. He has been a teacher of Philosophy for about 35 years. He has published many research papers in some of the important Indian journals and authored different chapters in some of the important books related to Philosophy in India.