नास्ति कश्चिदहस्तस्तु नाट्येऽर्थोऽभिनयं प्रति । यस्य यद् दृश्यते रूपं बहुशस्तन्मयोषितम् ॥१६३॥
There is no meaning in drama which cannot be expressed by hand gestures. Whatever form is commonly observed (in real life), that has been extensively represented through them.
english translation