• an attempt to arrive at a rational conception of the reality.
• enquires into the nature of the universe, the nature of the human soul, and its destiny, and the nature of God or the Absolute, and their relation to one another.
• enquires into the nature of matter, time, space, causality, evolution, life, and mind, and their relation to one another.
• the art of thinking all things logically, systematically, and persistently.
• the art of thinking rationally and systematically of the reality as a whole.