From the Buddha’s Dhammapada

(Freely translated by Stephen Mitchell.)

Mind creates the world;
what you see arises with your thoughts.
If you speak and act with a confused mind,
trouble will follow you as certainly
as a cart follows the ox that pulls it.

Mind creates the world;
what you see arises with your thoughts.
If you speak and act with a clear mind,
happiness will follow you as certainly
as your own shadow in sunlight.

“It’s his fault.” “She shouldn’t have done that.”
Believe such thoughts, and you live in resentment.

“It’s his fault.” “She shouldn’t have done that.”
Question such thoughts, and you live in freedom.

Anger teaches anger.
Fear results in more fear.
Only understanding can lead to peace.
This is the ancient law.