आप्तस्तंबस्मृति - क्रोध

न तथासिस्तथा तीक्ष्ण सर्पो वा दुरधिष्ठितः ।
यथा क्रोधो हि जन्तूनां शरीरस्थो विनाशकः ॥

- आप्तस्तंबस्मृति

Every body knows that when you step on knife or snake in the dark, it will hurt you much. But it is not very apparent how anger with in will hurt a person.

- Aptastamba Smriti