"Opportunistic relationships can hardly be kept constant. The acquaintance of honorable people, even at a distance, does not add flowers in times of warmth and does not change its leaves in times of cold: it continues unfading through the four seasons, becomes increasingly stable as it passes through ease and danger."
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Source : Liang Zhuge, Ji Liu (2005). “Mastering the Art of War”, p.58, Shambhala Publications
