In politics, a president does not only those things the Constitution commands him to do, but may also do anything at all that in his judgment serves the general welfare "unless he is expressly forbidden not to do it" by the Constitution.
- Donaldson, Lex; Davis, James H. (June 1991). "Stewardship Theory or Agency Theory: CEO Governance and Shareholder Returns". Australian Journal of Management 16.
- Stewardship Theory of Corporate Governance. Houston Chronicle.
- (Apr 16, 2009) The Dilemma of Progressivism: How Roosevelt, Taft, and Wilson Reshaped the American Regime of Self-Government. Rowman & Littlefield Publishers, 136–137. ISBN 978-0742560741.
- (Nov 1, 2010) The Myth of the Modern Presidency. Penn State Press, 19-20. ISBN 978-0271013176.
- (1916) Our chief magistrate and his powers. Columbia University Press, 139-140. “The true view of the Executive functions is, as I conceive it, that the President can exercise no power which cannot be fairly and reasonably traced to some specific grant of power or justly implied and included within such express grant as proper and necessary to its exercise. Such specific grant must be either in the Federal Constitution or in an act of Congress passed in pursuance thereof. There is no undefined residuum of power which he can exercise because it seems to him to be in the public interest, and there is nothing in the Neagle case and its definition of a law of the United States, or in other precedents, warranting such an inference.”