महाभारत - स्त्री पर्व - प्रज्ञा

प्रज्ञया मानसं दुःखं हन्याच्छारीरमौषधैः ।
एतद्विज्ञानसामर्थ्यं न बालैः समतामियात् ॥

- महाभारत, स्त्री पर्व

Just like taking medicine eases pain in the body, knowledge eases the pain in the mind. Such is the power of knowledge. Without that, we are all like kids who can not tell what is troubling them.

- Mahabharata, Stree Parva