Galen's Prophecy revisits an ancient idea: that inborn temperament helps shape how people think, feel, and act. Drawing on extensive research, the book re-evaluates classic temperament categories and their modern relevance.

The text links findings from biology, philosophy and psychology to consider temperament's role in aggression, conscience, emotional control and psychopathology. It pays particular attention to traditional types such as melancholic and sanguine and what empirical evidence now suggests about them.

Accessible to students and curious readers alike, the book offers a cross-disciplinary view useful for anyone studying personality, development, or the biological roots of behavior.

Key themes

• Temperament theory across history
• Biological and psychological evidence
• Implications for emotion, conscience and behavior

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