The Compendium of Caraka 1.28.7_3

1.28.7_3

na hi sarvāṇyapathyāni tulyadoṣāṇi na ca sarve doṣāstulyabalāḥ na ca sarvāṇi śarīrāṇi vyādhikṣamatve samarthāni bhavanti /

For not all unwholesome things are equal in defect, nor are all doshas equal in strength, nor are all bodies capable of disease-resistance.