Yōga Sūtras
Yōga Sūtra 2.09
स्वरसवाही विदुषोऽपि तथारूढोऽभिनिवेशः।
svarasavāhī viduṣō'pi tathārūḍhō'bhinivēśaḥ।
[स्व रस वाही विदुषः अपि तथा रूढः अभिनिवेशः।
sva = self-born; rasa = taste; vāhī = flows; viduṣaḥ = in the knowledgeable; api = even; tathā = that; rūḍhaḥ = is rooted; abhinivēśaḥ = clinging to life;]
Deep rooted craving for life is self-born taste that flows even in the knowledgeable.