The philosopher must look very far into human history and very deep into human nature when seeking the ultimate sources of human error and human wrong-doing. He must look farther than their social, economic, and political courses. This done, he will trace them to the animalistic instincts inherited from pre-human and primitive human incarnations. As long as these instincts remain undisciplined, and as long as the higher nature is not more eagerly cultivated, so long must we expect to witness the strife which produces war--whether between nations or inside them. It is quite proper to make the necessary remedial efforts through social, political, educational, organizational, and other means, but their benefits will disappear in the end if they are not made side by side with the effort to teach the necessity of liberation from these instincts by the appropriate mental and spiritual techniques. The more numerous the individuals who can find peace and joy inside their own hearts, the more will the dangers and horrors which threaten mankind be curbed.
-- Notebooks Category 11: The Negatives > Chapter 3: Their Presence in The World > # 343