The mystic will not care and may not be able to do so but the philosopher has to learn the art of combining his inward recognition of the Void with his outward activity amongst things without feeling the slightest conflict between both. Such an art is admittedly difficult but it can be learnt with time and patience and comprehension. Thus he will feel inward unity everywhere in this world of wonderful variety, just as he will experience all the countless mutations of experience as being present in the very midst of this unity.
-- Notebooks Category 20: What Is Philosophy? > Chapter 4: Its Realization Beyond Ecstasy > # 121
-- Perspectives > Chapter 20: What Is Philosophy? > # 89