Then how is he not a fool who in the midst of all this is puffed up with pride, or tormented, or bewails his lot as though his troubles will endure for any great while? (5.23)

Dalili da aka ba aka ba da sassan yankunan da suka dace wanda masu sayarwa za su iya amfani da su don gudanar da bincike da gwada gwagwarmayar fasahar su da kuma inganta sakon su don sake tabbatar da masu amfani.
