“The best and the greatest number of authors have asserted that philosophy consists of three parts: the moral, the natural, and the rational. The first puts the soul in order. The second thoroughly examines the natural order of things. The third inquires into the proper meaning of words, and their arrangements and proofs which keep falsehoods from creeping in to displace truth.” - Seneca
Morality is essential to who you are. Your core beliefs are more than words, mantras, or scriptures. They are who you are at your darkest moments. Build your moral core.
Nature is everything and everyone around you. You are influenced by the external, and driven to action by instincts as well as social pressures. Understand your natural place and instincts.
Rationality is the bridge between the internal and the external, morality and nature. Both your morals and nature will lie to you, use rationality to keep your truth.
Don’t trust, verify.