Aphorism 144 § 144 Aphorism 144 : From such a materia medica everything that is conjectural, all that is mere assertion or imaginary should be strictly excluded; everything should be the pure language of nature carefully and honestly interrogated.

Aphorism 143 § 143 Aphorism 143 : If we have thus tested on the healthy individual a considerable number of simple medicines and carefully and faithfully registered all the disease elements and symptoms they are capable of developing as artificial disease-producers, then only have we a true materia medica – a collection of real, pure,…

Aphorism 142 § 142 Aphorism 142 : But how some symptoms 1 of the simple medicine employed for a curative purpose can be distinguished amongst the symptoms of the original malady, even in diseases, especially in those of a chronic character that usually remain unaltered, is a subject appertaining to the higher art of judgement,…

Aphorism 141 § 141 Aphorism 141 : But the best provings of the pure effects of simple medicines in altering the human health, and of the artificial diseases and symptoms they are capable of developing in the healthy individual, are those which the healthy, unprejudiced and sensitive physician institutes on himself with all the caution…

Aphorism 140 § 140 Aphorism 140 : If the person cannot write, the physician must be informed by him every day of what has occurred to him, and how it took place. What is noted down as authentic information on this point, however, must be chiefly the voluntary narration of the person who makes the…