प्रत्यक्षं चक्षुषा दृष्ट्वा तत्र लोकः प्रवर्तते । अप्रत्यक्षं हि सर्वत्र ज्ञात्वा श्रोत्रेण चेष्टते २४ ।
Regarding visible things people see with their eyes and begin their activity. Concerning the invisible everywhere, they know through the ears and activise themselves.