“I, however, saw substance in the plea that the defeated ruling party should not be asked to form the Ministry as it had forfeited the mandate of the people. But I also saw the danger of vesting discretion without objective criteria in the President. While the monarchy in Britain is hereditary and unconnected with parties, the President of India is elected by the majority party and his actions could be partisan or liable to be questioned as partisan. On the other hand, if he followed strictly the criterion of calling the largest party, he would avoid the charge of partisanship. Besides, the President would not be able to play politics by calling a party other than the largest on the basis of his subjective assessment that such a party, in his opinion, was capable of providing a stable government.”

1960s, October surprise speech (1968)
Context: What we won when all of our people united just must not now be lost in suspicion, distrust, selfishness, and politics among any of our people. Believing this as I do, I have concluded that I should not permit the Presidency to become involved in the partisan divisions that are developing in this political year. With America's sons in the fields far away, with America's future under challenge right here at home, with our hopes and the world's hopes for peace in the balance every day, I do not believe that I should devote an hour or a day of my time to any personal partisan causes or to any duties other than the awesome duties of this office — the Presidency of your country. Accordingly, I shall not seek, and I will not accept, the nomination of my party for another term as your President.

2015, Speech: Declaration as Vice Presidential Candidate

Trump Strategist Stephen Bannon Says Media Should ‘Keep Its Mouth Shut’ by Michael M. Grynbaum New York Times https://nyti.ms/2jChcKC (January 26, 2017)

Inaugural Address (5 March 1877)

In newspaper 'Frankfurter Zeitung', 4 Dec. 1930, second morning edition [copy, in the 'Archive of the National-Galerie', East Berlin])
the statement in this German newspaper reports of the case, brought against Grosz for 'blasphemy', over his portfolio of prints: 'Hintergrund' (Background)

Hoover Off the Record (1934)

1960s, October surprise speech (1968)
Context: What we won when all of our people united just must not now be lost in suspicion, distrust, selfishness, and politics among any of our people. Believing this as I do, I have concluded that I should not permit the Presidency to become involved in the partisan divisions that are developing in this political year. With America's sons in the fields far away, with America's future under challenge right here at home, with our hopes and the world's hopes for peace in the balance every day, I do not believe that I should devote an hour or a day of my time to any personal partisan causes or to any duties other than the awesome duties of this office — the Presidency of your country. Accordingly, I shall not seek, and I will not accept, the nomination of my party for another term as your President.

William Howard Taft Essential Writings and Addresses. Edited by David H. Burton. Faitleigh Dickinson University Press (2009). Chapter 1: Political Analyses. Subchapter: The President and His Powers, page 149-150. https://books.google.de/books?id=KiWFtHXQDOIC&pg=PA149&lpg=PA149&dq=that+they+make+him+responsible+for+all+the+sins+of+omission+and+of+commission+of+society+at+large.&source=bl&ots=Zy5G9PEz2_&sig=kGqYf643TGdpt-tT-9CWD2ex9LI&hl=de&sa=X&ved=0ahUKEwiBxbPsi6fQAhXsKcAKHcV4AH0Q6AEIJjAC#v=onepage&q=that%20they%20make%20him%20responsible%20for%20all%20the%20sins%20of%20omission%20and%20of%20commission%20of%20society%20at%20large.&f=false
Context: The President so fully represents his party, which secures political power by its promise to the people, and the whole government is so identified in the minds of the people with his personality that they make him responsible for all the sins of omission and of commission of society at large. This would be ludicrous if it did not have sometimes serious results. The President cannot make clouds to rain and cannot make the corn to grow, he cannot make business good; although when these things occur, political parties do claim some credit for the things that have happened in this way. He has no power of state legislation, which covers a very wide field and which comes in many respects much closer to the happiness of the people than the Federal Government.

1990s, Speech to the Council for National Policy (1997)