*The Duties of the Heart* is a medieval Jewish ethical treatise (musar literature) by Rabbi Bachye ibn Paquda, here in an early 20th-century English translation. The excerpt focuses on the practice of *cheshbon ha-nefesh* — moral self-examination and inner accounting — as the path to spiritual refinement and closeness with God. Bachye argues that the believer who habitually meditates on divine omniscience will gradually align their will entirely with God's, reaching the highest rank of the righteous. The text counsels a middle path between worldly engagement and solitude: one should cultivate enough detachment to desire only what is necessary, while still benefiting from the company of the wise and fulfilling duties of compassion toward others. A distinctive emphasis runs throughout on the dangers of excessive social intercourse — idle talk, boasting, and oath-taking — paired with a strong preference for the quiet inner life. The work is a practical guide to inward piety rather than legal observance, making it an unusually psychological text within the medieval rabbinic tradition.