Mahabharata 12.26.24

12.26.24

sukhamante hi duḥkhānāṃ duḥkhamante sukhasya ca |
tasmādetaddvayaṃ jahyādya icchecchāśvataṃ sukham || 24 ||

There are thousands of causes for sorrow, and hundreds of causes for joy. These every day affect the ignorant only, but not him that is wise. These, in course of Time. become objects of affection or aversion, and appearing as bliss or woe revolve (as if in a wheel) for affecting living creatures. There is only sorrow in this world but no happiness. It is for this that sorrow only is felt. Indeed, sorrow springs from that affliction called desire, and happiness springs from the affliction called sorrow. Sorrow comes after happiness, and happiness after sorrow. One does not always suffer sorrow or always enjoy happiness. Happiness always ends in sorrow, and sometimes proceeds from sorrow itself. He, therefore, that desires eternal happiness must abandon both. When sorrow must arise upon the expiration of happiness, and happiness upon the expiration of sorrow, one should, for that, cast off, like a (snake-bit) limb of one's body, that from which one experiences sorrow or that heart-burning which is nurtured by sorrow or that which is the root of his anxiety. Be it happiness or sorrow, be it agreeable or disagreeable, whatever comes should be borne with an unaffected heart. O amiable one, if thou abstainest, in even a slight measure, from doing what is agreeable to your wives and children, thou shalt then know who is whose and why so and for what. They that are highly stupid and they that are masters of their souls enjoy happiness here.