One develops attachment to sense objects by thinking about sense objects. Desire for sense objects comes from attachment to sense objects, and anger comes from unfulfilled desires.
Knowledge is better than mere ritualistic practice, meditation is better than mere knowledge, renunciation of the fruit of work is better than meditation, peace immediately follows the renunciation of (the attachment to) the fruit of work.
The one who remains the same towards friend or foe, in honor or disgrace, in heat or cold, in pleasure or pain; who is free from attachment is dear to me.
Those who consciousness is unified abandon all attachment to the results of action and attain supreme peace. But those whose desires are fragmented, who are selfishly attached to the results of their work, are bound in everything they do.
When you move amidst the world of sense, free from attachment and aversion alike, there comes the peace in which all sorrows end, and you life in the wisdom of the Self.
Better indeed is knowledge than mechanical practice. Better than knowledge is meditation. But better still is surrender of attachment to results, because there follows immediate peace.
Always perform your duty efficiently and without attachment to the results, because by doing work without attachment one attains the Supreme.
A person is said to have attained yogic perfection when there is no desire for sensual pleasures, or attachment to the fruits of work, and has renounced all personal selfish motives.
A Karma-yogi performs action by body, mind, intellect, and senses, without attachment (or ego), only for self-purification.