Verse 12

आलोकिता लोकदृशो दृष्टा दृष्टान्तदृष्टयः ।न प्राप्तस्तत्त्वयाऽनेन किंचिदासादितं भवेत्

In plain words

many ways of seeing the world were surveyed, and views that reason by example were examined; yet he was not attained, and so nothing at all could have been gained by you through this.