The Metta Sutta
Let one be strenuous, upright and sincere, without pride, Easily contented and joyous. Let one not be submerged by the things of the world. Let one not take upon oneself the burden of riches. Let one’s senses be controlled. Let one be wise but not puffed up, and let one not desire great possessions, even for one’s family. Let one do nothing that is mean or that the wise would reprove.