The person whose mind is always free from attachment, who has subdued the mind and senses, and who is free from desires, attains the supreme perfection of freedom from Karma through renunciation.
-Bhagavad Gita

Still others commit all sorts of evil deeds, claiming karma doesn’t
exist. They erroneously maintain that since everything is empty,
committing evil isn’t wrong. Such persons fall into a hell of endless
darkness with no hope of release. Those who are wise hold no such
conception.
-Bohidharma

Karma moves in two directions. If we act virtuously, the seed we plant
will result in happiness. If we act nonvirtuously, suffering results.
-Sakyong Mipham