"The ultimate goal of life, liberation from rebirth, though in general shared by all soteriologies in Brahmanism, Jainism and Buddhism, was represented uniquely by Buddhists as the pacification of all psychological attachments through the extinguishing (nirvana) of desires, which would lead to a consequent extinguishing of karma and the prevention of rebirth."

Internet Encyclopedia of Philosophy - Nagarjuna

"If my sense of self is actually composed of habitual ways of perceiving, feeling, thinking and behaving, then karma isn't something I have, it's what I am.

I change my karma by changing who I am: by reconstructing my habitual ways of perceiving, feeling, thinking and behaving.

Karma is about how habitual ways of thinking and acting tend to create predictable types of situations."

Money, sex, war, karma  

"The Pali word kamma or the Sanskrit karma literally means 'action', 'doing'. But in the Buddhist theory of karma it has a specific meaning: it means only volitional action, not all action. Nor does it mean  the result of karma as many people wrongly  and loosely use it. In Buddhist terminology karma never means its effect; its effect is known as the fruit or the result of karma.

The theory of karma should not be confused  with so-called moral justice or reward and punishment. The theory of karma is the theory of cause and effect, of action and reaction; it is a natural law, which has nothing to do with the idea of justice or reward and punishment. Every volitional action produces its effects or results. If a good action produces good effects and a bad action bad effects, it is not justice, or reward, or punishment meted out by anybody or any power sitting in judgement on your action, but this is in virtue of its own nature, its own law."

What the Buddha taught - p.32

"It is volition that I call Karma. Having willed, one acts through body, speech and mind."

What the Buddha taught - p.22

"O fluxo mental continua sem cessar, como a corrente elétrica que continua existindo, apesar de a lâmpada estar queimada e de a luz não se manifestar. Mas, instalada uma nova lâmpada, outra vez a corrente elétrica se manifesta, acendendo-a. É este fluxo dinâmico mental que se chama carma, vontade, sede, desejo. Estas forças potentes, esta vontade de viver mantêm a continuidade da vida. De tal modo este fluxo contínuo de consciência continua sem fim, enquanto perdura o desejo.

A mente é o fator que ativa a vida, e os corpos físicos dos seres vivos são somente o resultado material de forças mentais anteriores que foram geradas em vidas passadas.

A força invisível gerada pela mente, quando ela é liberta do corpo e projetada para além da morte, agarra-se aos elementos do mundo material e deles, pelo processo natural de geração, molda uma nova forma de vida.

A energia mental produzida no passado, em combinação com o processo biológico, forma um novo ser sensível. Buda refuta categoricamente o falso ponto de vista que quer perpetuar o eu e eternizá-lo. Há apenas continuidade de carma."

Budismo: psicologia do autoconhecimento - p. 60-62