O son of Kuntī, the nonpermanent appearance of happiness and distress, and their disappearance in due course, are like the appearance and disappearance of winter and summer seasons. They arise from sense perception, O scion of Bharata, and one must learn to tolerate them without being disturbed. 2.14

Those who are seers of the truth have concluded that of the nonexistent there is no endurance, and of the existent there is no cessation. This seers have concluded by studying the nature of both. 2.16

Know that which pervades the entire body is indestructible. No one is able to destroy the imperishable soul. 2.17

Only the material body of the indestructible, immeasurable and eternal living entity is subject to destruction; therefore, fight, O descendant of Bharata. 2.18

He who thinks that the living entity is the slayer or that he is slain, does not understand. One who is in knowledge knows that the self slays not nor is slain. 2.19

For the soul there is never birth nor death. Nor, having once been, does he ever cease to be. He is unborn, eternal, ever-existing, undying and primeval. He is not slain when the body is slain. 2.20

The soul can never be cut into pieces by any weapon, nor can he be burned by fire, nor moistened by water, nor withered by the wind. 2.23

This individual soul is unbreakable and insoluble, and can be neither burned nor dried. He is everlasting, all-pervading, unchangeable, immovable and eternally the same. 2.24

You have a right to perform your prescribed duty, but you are not entitled to the fruits of action. Never consider yourself to be the cause of the results of your activities, and never be attached to not doing your duty. 2.47

Be steadfast in yoga, O Arjuna. Perform your duty and abandon all attachment to success or failure. Such evenness of mind is called yoga. 2.48

O Pārtha, when a man gives up all varieties of sense desire which arise from mental concoction, and when his mind finds satisfaction in the self alone, then he is said to be in pure transcendental consciousness. 2.55

One who is not disturbed in spite of the threefold miseries, who is not elated when there is happiness, and who is free from attachment, fear and anger, is called a sage of steady mind. 2.56

He who is without attachment, who does not rejoice when he obtains good, nor lament when he obtains evil, is firmly fixed in perfect knowledge. 2.57

The senses are so strong and impetuous, O Arjuna, that they forcibly carry away the mind even of a man of discrimination who is endeavoring to control them. 2.60

While contemplating the objects of the senses, a person develops attachment for them, and from such attachment lust develops, and from lust anger arises. 2.62

From anger, delusion arises, and from delusion bewilderment of memory. When memory is bewildered, intelligence is lost, and when intelligence is lost, one falls down again into the material pool. 2.63

One who is not in transcendental consciousness can have neither a controlled mind nor steady intelligence, without which there is no possibility of peace. And how can there be any happiness without peace? 2.66

As a boat on the water is swept away by a strong wind, even one of the senses on which the mind focuses can carry away a man's intelligence. 2.67

What is night for all beings is the time of awakening for the self-controlled; and the time of awakening for all beings is night for the introspective sage. 2.69

A person who is not disturbed by the incessant flow of desires-that enter like rivers into the ocean which is ever being filled but is always still-can alone achieve peace, and not the man who strives to satisfy such desires. 2.70