Mobile creatures should be regarded superior to the immobile. It is reasonable that intelligence which differentiates (all nonintelligent matter), should be considered superior to (non-intelligent) matter.
स्थावरेभ्यो विशिष्टानि जङ्गमान्युपधारयेत्। उपपन्नं हि यच्चेष्टा विशिष्येत विशेष्यया॥