Since Buddhism requires mindfulness throughout the day, I have found it helpful to keep short passages memorized. Here is one of the best that I have found. I have no idea where it originally came from, but it can be found in Edward Conze's Buddhism: It's Essence and Development:

OF whatever teachings, you can assure yourself that they are conducive to
Dispassion and not to passion;
To detachment and not to bondage;
To decrease of worldly gains and not to their increase;
To frugality and not to covetousness;
To content and not to discontent;
To solitude and not to company;
To energy and not to sluggishness;
To delight in good and not to delight in evil;
Of such teachings you may with certainty affirm;
This is the norm; this is the discipline; this is the Buddha’s message.