Charak Samhita
एका शान्तिरनेकस्य तथैवैकस्य लक्ष्यते । व्याधेरेकस्य चानेका बहूनां बह्व्य एव च ॥३०॥
॥ Therapeutic considerations॥ A single therapy can subside many diseases as well as a single disease. Multiple therapies may be needed to subside many diseases, whereas one disease could require multiple therapies to cure.
english translation
ekA zAntiranekasya tathaivaikasya lakSyate । vyAdherekasya cAnekA bahUnAM bahvya eva ca ॥30॥
hk transliteration by Sanscript