Natyashastra
सौष्ठवे लक्षणं प्रोक्तं वर्तनाक्रमयोजितम् । शोभा सर्वैव नित्यं हि सौष्ठवं समुपाश्रिता ॥ ९०॥
The characteristics of Sauṣṭhava (graceful poise) have been described with its proper application in movement. All beauty always depends on Sauṣṭhava.
english translation
sauSThave lakSaNaM proktaM vartanAkramayojitam । zobhA sarvaiva nityaM hi sauSThavaM samupAzritA ॥ 90॥
hk transliteration by Sanscript