“I know,” said he, “whence his illness arises: when you know the cause (of a disease), the (means of) curing (it) is manifest.
گفت من رنجش همی دانم ز چیست ** چون سبب دانی دوا کردن جلیست
When the cause is unknown, the remedy for the illness is difficult (to find), and in that (case) there are a hundred grounds to which it may be referred;
چون سبب معلوم نبود مشکلست ** داروی رنج و در آن صد محملست
(But) when you have ascertained the cause, it becomes easy: knowledge of causes is the means of expelling ignorance.”
چون بدانستی سبب را سهل شد ** دانش اسباب دفع جهل شد
He said to himself, “The smell of that dog's dung is multiplied in his brain and veins.
گفت با خود هستش اندر مغز و رگ ** توی بر تو بوی آن سرگین سگ
Up to the waist in filth, he is absorbed in the tanner's craft till nightfall, seeking his livelihood.275
تا میان اندر حدث او تا به شب ** غرق دباغیست او روزی‌طلب
Thus then has the great Jálínús (Galen) said: ‘Give the patient that to which he was habituated (before his illness);
پس چنین گفتست جالینوس مه ** آنچ عادت داشت بیمار آنش ده
For his illness arises from doing the contrary to (his usual) habit: therefore seek the remedy for his illness in that which is habitual (to him).’
کز خلاف عادتست آن رنج او ** پس دوای رنجش از معتاد جو
He (the tanner), from carrying dung, has become like the dung-beetle: the dung-beetle is made insensible by rose-water.
چون جعل گشتست از سرگین‌کشی ** از گلاب آید جعل را بیهشی
The remedy for him consists in that same dog's dung to which he is habituated and accustomed.”
هم از آن سرگین سگ داروی اوست ** که بدان او را همی معتاد و خوست
Recite (the text), the wicked women for the wicked men: recognise (both) the front and the back of this saying.280
الخبیثات الخبیثین را بخوان ** رو و پشت این سخن را باز دان