from the Dhammapada Sutra

 “The thought manifests as the word;
The word manifests as the deed;
The deed develops into habit;
And the habit into character.

 So, watch the thought and its ways with care
And let it spring from love
Born out of concern for all Beings.
As the shadow follows the body,
As we think, so we become.”

Dhammapada Sutra   PDF