The king should act in such way that his foe may not see his shortcomings. He should, however, himself notice the weak points of his enemy. He should imitate the tortoise which conceals its limbs. He should always keep hidden his own holes.
नात्मच्छिद्रं रिपुर्विद्याद् विहाच्छिद्रं परस्य तु। गृहेत् कूर्म इवाङ्गानि रक्षेद् विवरमात्मनः॥