Choices
Choices is from the Dhammapada,  one of the best known books of the Pitaka. It
is a collection of the teachings of the Buddha expressed in clear, pithy verses.
These verses were culled from various discourses given by the Buddha in the
course of forty-five years of his teaching,

Verses (1) and (2) illustrate the immutable law of Kamma, under which every
deed, good or bad, comes back to the doer. Here, the Buddha emphasizes the
importance of mind in all our actions and speaks of the inevitable consequences
of our deeds, words and thoughts.

Verse 1 (alternate translation): All mental phenomena have mind as their
forerunner; they have mind as their chief; they are mind-made. If one speaks or
acts with an evil mind, 'dukkha' follows him just as the wheel follows the hoofprint
of the ox that draws the cart.

More at :
http://www.tipitaka.net/tipitaka/dhp/index.php
We are what we think.
All that we are arises with our thoughts.
With our thoughts we make the world.
Speak or act with an impure mind and trouble will follow you,
As the wheel follows the ox that draws the cart.

We are what we think.
All that we are arises with our thoughts.
With our thoughts we make the world.
Speak or act with a pure mind and happiness will follow you,
As your shadow, unshakable.
How can a troubled mind understand the way?

Your worst enemy cannot harm you as much as your own thoughts,
unguarded.
But once mastered, no one can help you as much,
Not even your father or your mother.