ينجح معظم البشر في إهدار وقت فراغهم، لأن وقت الفراغ يجعلهم غير فعّالين، كسولين، وغير متحمسين – كلما زاد انشغالهم، كلما زاد نشاطهم في المهام الأخرى.

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