The philosophic attitude is to be in the world but not of it, to hold necessary useful or beautiful possessions but not to be held by them. It knows the transiency of things, the brevity of pleasures, the movement of every situation. This is the way of the universe, the ebb and flow of life, the power of time to alter the pattern of every existence. So the philosopher adjusts himself to this rhythm, learns how and when to let go and when to hold on, and so retains his inner equilibrium, his inner poise and peace. During stormy times he stands firm as a rock, he studies their meaning and accepts their lesson; during sunny times he avoids identifying himself with the little ego and remembers his true security is in the Overself.
-- Notebooks Category 20: What Is Philosophy? > Chapter 5: The Philosopher > # 100