We must retain our determination and our loyalty to the quest in all circumstances. Physical pains, climatic extremes must not deter us. We must console ourselves with the thought that these things are certain to pass away. They are mental figments, ideas which will be negated, whereas the truth and reality we seek belong to the immutable, and can never be negated.
-- Notebooks Category 6: Emotions and Ethics > Chapter 1: Uplift Character > # 438