Manusmriti
अउषधान्यगदो विद्या दैवी च विविधा स्थितिः । तपसैव प्रसिध्यन्ति तपस्तेषां हि साधनम् ॥ २३७ ॥
Medicines, good health, learning, and the various divine stations are attained by austerities alone; for austerity is the means of gaining them.
english translation
auSadhAnyagado vidyA daivI ca vividhA sthitiH । tapasaiva prasidhyanti tapasteSAM hi sAdhanam ॥ 237 ॥
hk transliteration by Sanscript