حين يتطلّع الجمهور إلى راقصٍ على الحبل المرتخي، يتلوّون ويتلوّون ويوازنون أجسادهم تلقائيًّا، كما يرونه يفعل.

“The mob, when they are gazing at a dancer on the slack rope, naturally writhe and twist and balance their own bodies, as they see him do.”Adam Smith — Essays On, I. Moral Sentiments: II. Astronomical Inquiries; III. Formation of Languages; IV. History of Ancient Physics; V. Ancient Logic and Metaphysicis; VI. The Imitative Arts; VII. Music, Dancing, Poetry; VIII. The External Senses; IX. English and Italian Verses (1869)