“I wish to preach, not the doctrine of ignoble ease, but the doctrine of the strenuous life, the life of toil and effort, of labor and strife; to preach that highest form of success which comes, not to the man who desires mere easy peace, but to the man who does not shrink from danger, from hardship, or from bitter toil, and who out of these wins the splendid ultimate triumph.”

Interview in The Voice of Ethiopia (5 April 1948) http://www.jah-rastafari.com/selassie-words/show-jah-word.asp?word_id=interview.
Context: One cannot deny that in former times man's life had been one of toil and hardship. It is correct to say, therefore, that modern civilization and the progress of science have greatly improved man's life and have brought comfort and ease in their trail. But civilization can serve man both for good as well as for evil purposes. Experience shows that it has invariably brought great dividends to those who use it for good purposes while it has always brought incalculable harm and damnation to those who use it for evil purposes. To make our wills obedient to good influences and to avoid evil, therefore, is to show the greatest wisdom. In order to follow this aim one must be guided by religion. Progress without religion is just like a life surrounded by unknown perils and can be compared to a body without a soul. All human inventions, from the most primitive tool to the modern atom, can help man greatly in his peaceful endeavours. But if they are put to evil purposes they have the capacity to wipe out the human race from the surface of the earth. It is only when the human mind is guided by religion and morality that man can acquire the necessary vision to put all his ingenuous inventions and contrivances to really useful and beneficial purposes.

ll. 212-221
A Satire Against Mankind (1679)

Part 2, chapter 4 http://books.google.com/books?id=Xw-DAAAAMAAJ&q=%22The+demagogue+is+one+who+preaches+doctrines+he+knows+to+be+untrue+to+men+he+knows+to+be+idiots%22&pg=PA103#v=onepage
1920s, Notes on Democracy (1926)
Context: The demagogue is one who preaches doctrines he knows to be untrue to men he knows to be idiots. The demaslave is one who listens to what these idiots have to say and pretends to believe it himself.

1900s, The Strenuous Life: Essays and Addresses (1900), The Strenuous Life
Context: If we stand idly by, if we seek merely swollen, slothful ease and ignoble peace, if we shrink from the hard contests where men must win at hazard of their lives and at the risk of all they hold dear, then the bolder and stronger peoples will pass us by, and will win for themselves the domination of the world. Let us therefore boldly face the life of strife, resolute to do our duty well and manfully; resolute to uphold righteousness by deed and by word; resolute to be both honest and brave, to serve high ideals, yet to use practical methods. Above all, let us shrink from no strife, moral or physical, within or without the nation, provided we are certain that the strife is justified, for it is only through strife, through hard and dangerous endeavor, that we shall ultimately win the goal of true national greatness.

Source: The Roominghouse Madrigals: Early Selected Poems, 1946-1966

Politik, 4th ed., 1918, Vol. i, p. 74, quoted in W. W. Coole (ed.), Thus Spake Germany (London: George Routledge & Sons, 1941), p. 93.

Source: Aphorisms and Reflections (1901), p. 227

The Obedience of A Christian Man (1528)
Context: The preaching of God’s word is hateful and contrary unto them. Why? For it is impossible to preach Christ, except thou preach against antichrist; that is to say, them which with their false doctrine and violence of sword enforce to quench the true doctrine of Christ. And as thou canst heal no disease, except thou begin at the root; even so canst thou preach against no mischief, except thou begin at the bishops.

"Is Capitalism Too Productive?", Foreign Affairs (September/October 1997)