Sushruta Samhita
वाक्सौष्ठवेऽर्थविज्ञाने प्रागल्भ्ये कर्मनैपुणे । तदभ्यासे च सिद्धौ च यतेताध्ययनान्तगः ॥५६॥
In the mastery of eloquence, understanding of meanings, previous knowledge, and skill in actions, one should strive for excellence through practice and continued study.
english translation
vAksauSThave'rthavijJAne prAgalbhye karmanaipuNe । tadabhyAse ca siddhau ca yatetAdhyayanAntagaH ॥56॥
hk transliteration by Sanscript