"If by sticking to the moral principles you have followed all your life, you jeopardize your happiness and that of others, throw over your principles. Principles for principles' sake -that is not wisdom; that is obstinacy. Principles should be fluid because life is fluid."
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Source : "Don Pañong - Genius" by A.V.H. Hartendorp, Philippine Magazine, p. 211, September 1929.