Органон Врачебного Искусства

Organon §274

Do not use complex means when simple ones will suffice.

Organon §273

Administer only one single, simple medicine at a time.

Organon §268

Use of dry powders in the preparation of medicines

Organon §267

Preparation of medicinal liquid from fresh plants

Organon §265

Physicians should prepare their own medicines and personally give them to their patients.