This section highlights significant written contributions to public health, presenting them in their original form alongside modern commentary. Frank Grad comments on the Preamble of the World Health Organization (WHO) Constitution, established in 1946. The Constitution was created to address global health issues, building on the work of the League of Nations' Health Organization. While the League's contributions were recognized, the WHO Constitution was largely independent. The Preamble of the WHO Constitution is a coherent statement that defines health as complete physical, mental, and social well-being, not just the absence of disease. It emphasizes the fundamental right to health for all, linking health to peace, security, and the well-being of all peoples. The Preamble also highlights the importance of public health, the development of children, and the need for equitable distribution of health resources. It acknowledges the responsibility of governments to ensure health through adequate measures and the need for international cooperation. The Preamble reflects the principles of the United Nations Charter and the Universal Declaration of Human Rights. It also recognizes the importance of public participation and the role of WHO in promoting global health. The Preamble outlines the principles that member states must accept to establish the WHO as a specialized agency of the United Nations. The document emphasizes the importance of health as a fundamental human right and the need for global cooperation to achieve health for all. The Preamble serves as a foundation for the WHO's mission to promote and protect global health.This section highlights significant written contributions to public health, presenting them in their original form alongside modern commentary. Frank Grad comments on the Preamble of the World Health Organization (WHO) Constitution, established in 1946. The Constitution was created to address global health issues, building on the work of the League of Nations' Health Organization. While the League's contributions were recognized, the WHO Constitution was largely independent. The Preamble of the WHO Constitution is a coherent statement that defines health as complete physical, mental, and social well-being, not just the absence of disease. It emphasizes the fundamental right to health for all, linking health to peace, security, and the well-being of all peoples. The Preamble also highlights the importance of public health, the development of children, and the need for equitable distribution of health resources. It acknowledges the responsibility of governments to ensure health through adequate measures and the need for international cooperation. The Preamble reflects the principles of the United Nations Charter and the Universal Declaration of Human Rights. It also recognizes the importance of public participation and the role of WHO in promoting global health. The Preamble outlines the principles that member states must accept to establish the WHO as a specialized agency of the United Nations. The document emphasizes the importance of health as a fundamental human right and the need for global cooperation to achieve health for all. The Preamble serves as a foundation for the WHO's mission to promote and protect global health.