In youth we suffer from an unreflecting optimism or an unknowledgeable pessimism but the years correct that. After we have gone through enough experience, we know better how to be cheerful without permitting our optimism to obstruct our reasoning faculties and without permitting our pessimism to dominate during reaction to difficulties. We know we cannot afford the shallow optimism which thrusts the thorn aside and sees only the rose. We prefer to view the red beauty in all her brutality while enjoying the fragrance.
-- Notebooks Category 13: Human Experience > Chapter 1: Situation > # 149