The Torah is acquired with 48 qualities: study, listening, verbalizing, comprehension of the heart, awe, fear, humility, joy, purity, serving the sages, companionship with one's contemporaries, debating with one's students, tranquility, study of the scriptures, study of the Mishnah, minimizing engagement in business, minimizing socialization, minimizing pleasure, minimizing sleep, minimizing talk, minimizing gaiety, slowness to anger, good heartedness, faith in the sages, acceptance of suffering, knowing one's place, satisfaction with one's lot, qualifying one's words, not taking credit for oneself, likableness, love of G-d, love of humanity, love of charity, love of justice, love of rebuke, fleeing from honor, lack of arrogance in learning, reluctance to hand down rulings, participating in the burden of one's fellow, judging him to the side of merit, correcting him, bringing him to a peaceful resolution [of his disputes], deliberation in study, asking and answering, listening and illuminating, learning in order to teach, learning in order to fulfill, wising one's teacher, exactness in conveying a teaching, and saying something in the name of its speaker.

–Ethics of the Fathers 6:6