Wisdom - Ashtavakra Samhita Chapter11 Verse5
चिन्तया जायते दुःखं नान्यथेहेति निश्चयी।
तया हीनः सुखी शान्तः सर्वत्र गलितस्पृहः।।11.5।।
Chintayaa jaayate duhkham naanya theheti nishchayi
tathaa heenah sukhi shaantah sarbatra galita spruhah
(Ashtavakra Samhita Chapter11 Verse5)
The person who has realized that it is the worries, anxieties and care, and, nothing else, that breed miseries and sufferings in the world. Such a person becomes free from it and enjoys peace, and happiness and becomes free from the bondage of desires.