“God has required us (the Ahlul Bayt) to be obeyed for the sake of protection of the Ummah (community) and Imāmat (leadership); and our leadership is obligatory to protect against disunity.”

Nahj al-Balagha

Ayan al-Shī‘ah, vol.1, p. 316.

Introduction, p. xxv
The Age of Fallibility (2006)
Context: We must recognize that as the dominant power in the world we have a special responsibility. In addition to protecting our national interests, we must take the leadership in protecting the common interests of humanity. I go into some detail as to what that entails.
Mankind’s power over nature has increased cumulatively while its ability to govern itself has not kept pace. There is no other country that can take the place of the United States in the foreseeable future. If the United States fails to provide the right kind of leadership our civilization may destroy itself. That is the unpleasant reality that confronts us.

Quotes, IPI speech (2000)
Context: The disruption of the world's ecological systems — from the rise of global warming and the consequent damage to our climate balance, to the loss of living species and the depletion of ocean fisheries and forest habitats — continues at a frightening rate. Practically every day, it becomes clearer to us that must act now to protect our Earth, while preserving and creating jobs for our people.
And at the very same time that these threats are developing, the traditional nation-state itself is changing — as power moves upwards and downwards, to everything from supra-national organizations and coalitions all the way down to feuding clans. Susceptible to tyrants willing to exploit ethnic and religious rivalries, the weakest of these states have either imploded into civil war or threatened to lash out across their borders.
To meet these challenges requires cooperation on a scale not seen before. A realistic reading of the world today demands reinvigorated international and regional institutions. It demands that we confront threats before they spiral out of the control. And it requires American leadership — to protect our interests and uphold our values.

Source: Start with Why: How Great Leaders Inspire Everyone to Take Action

Paracelsus - Doctor of our Time (1992)

Letter to Indian Prime Minister Manmohan Singh, 20 October 2005 (excerpts)

The Official Website of the Senate of the Philippines http://www.senate.gov.ph/press_release/2008/0229_escudero1.asp
2008

Charles Perrow (1963). "Goals and Power Structures: A Historical Case Study." In: E. Friedson, (Ed.), The Hospital in Modern Society. New York: The Free Press, p. 132
1960s