Irvin D. Yalom said this quote

The freedom of an unscheduled afternoon brought confusion rather than joy. Julius had always been focused. When he was not seeing patients, other important projects and activities-writing, teaching, tennis, research-clamored for his attention. But today nothing seemed important. He suspected that nothing had ever been important, that his mind had arbitrarily imbued projects with importance and then cunningly covered its traces. Today he saw through the ruse of a lifetime. Today there was nothing important to do, and he ambled aimlessly down Union Street.