Organon §258
By the same token, the medical-art practitioner will not (out of mistrustful weakness) avoid medicines, in his further medical pursuit, that he previously employed with disadvantage because he had incorrectly selected them (therefore, his own fault) or for other (ungenuine) reasons. He will only avoid a medicine for the reason that it is unhomeopathic for a given case of disease. He will bear in mind that the only medicine that deserves his attention and preference is always the one that, in each case of disease, most aptly corresponds in similarity to the totality of characteristic symptoms, and he will not allow petty passions to interfere with this serious choice.