Jean-Baptiste Pussin (1745–1811), the French hospital superintendent who worked alongside Philippe Pinel during the moral treatment reforms at the Bicêtre and Salpêtrière hospitals in the 1790s, understood motivation as a central element in both the development and recovery of psychopathology.
Drawing on daily observation rather than abstract theory, Pussin believed that mental illness was not simply a biological defect but was profoundly influenced by emotional experiences, environmental conditions, habits, interpersonal relationships, and the patient's remaining capacity for reason and self-control. Rather than relying on coercion, he sought to motivate patients through kindness, respect, structured routines, meaningful occupation, and the development of trust, believing that humane treatment could awaken hope, restore self-discipline, and encourage recovery.
His practical work significantly influenced Philippe Pinel (1745–1826), whose writings on moral treatment acknowledged Pussin's expertise, and together they laid the foundations for modern psychosocial approaches to mental health, later influencing figures such as Jean-Étienne Dominique Esquirol (1772–1840).
From a Christian perspective, Pussin's emphasis on the dignity, compassion, and restorative potential of every person resonates strongly with the Biblical teaching that all people are created in the image of God (imago Dei; Genesis 1:26–27), deserving of love and mercy regardless of illness. His rejection of cruelty reflects Christ's command to love one's neighbour (Matthew 22:39), to show mercy (Luke 10:25–37), and to care for the vulnerable (Matthew 25:34–40).
Theologically, his approach is consistent with the Christian understanding that although human beings are affected by the brokenness of the Fall (Romans 8:20–23), God's common grace enables compassionate care, healing relationships, and the restoration of hope (Psalm 147:3; 2 Corinthians 1:3–4), making Pussin's humane treatment philosophy compatible with a Christian ethic of compassion, justice, and respect for human dignity.