Arthashastra
अल्पं पश्चात् कोपं प्रयातस्स्य दूष्य अमित्र आटविका हि सर्वतः समेधयन्ति, प्रकृति कोपो वा ॥
for traitors, enemies, and wild tribes augment on all sides the slight annoyance which one may have in the rear.
english translation
alpaM pazcAt kopaM prayAtassya dUSya amitra ATavikA hi sarvataH samedhayanti, prakRti kopo vA ॥
hk transliteration by Sanscript