“It is the business of the production engineer to know every single item that constitutes his finished product, and every step involved in the handling of every piece. He must know what is the most advantageous manufacturing quantity of every single item so as to secure uniformity of flow as well as economy of manufacture. He must know how long each step ought to take under the best attainable working conditions. He must be able to tell at any time the exact condition as regards quantity and state of finishedness of every part involved in his manufacturing process.”

Source: What is to be Done? (1902), Chapter Three, Section E, Essential Works of Lenin (1966)

Listen, Little Man! (1948)
Context: Every physician, shoemaker, mechanic or educator must know his shortcomings if he is to do his work and make his living. For some decades, you have begun to play a governing role on this earth. It is on your thinking and your actions that the future of humanity depends. But your teachers and masters do not tell you how you really think and are; nobody dares to voice the one criticism of you which could make you capable of governing your own fate. You are "free" only in one sense: free from education in governing your life yourself, free from self-criticism.

1930s, Wisehart interview (1930)

Source: "Industrial Engineering," 1905, p. 67

Solitude.
Curiosities of Literature (1791–1834)

Isaac D'Israeli, The Curiosities of Literature, "Solitude".
Misattributed, Isaac D'Israeli

Is Iraq a True Threat to the US? http://www.commondreams.org/views02/0721-02.htm, Boston Globe, July 2002
2000

Source: Natural Theology (1802), Ch. 27 : Conclusion.
Context: It is a step to have it proved, that there must be something in the world more than what we see. It is a further step to know, that, amongst the invisible things of nature, there must be an intelligent mind, concerned in its production, order, and support. These points being assured to us by Natural Theology, we may well leave to Revelation the disclosure of many particulars, which our researches cannot reach, respecting either the nature of this Being as the original cause of all things, or his character and designs as a moral governor; and not only so, but the more full confirmation of other particulars, of which, though they do not lie altogether beyond our reasonings and our probabilities, the certainty is by no means equal to the importance. The true theist will be the first to listen to any credible communication of Divine knowledge. Nothing which he has learned from Natural Theology, will diminish his desire of further instruction, or his disposition to receive it with humility and thankfulness. He wishes for light: he rejoices in light. His inward veneration of this great Being, will incline him to attend with the utmost seriousness, not only to all that can be discovered concerning him by researches into nature, but to all that is taught by a revelation, which gives reasonable proof of having proceeded from him.

Aphorism 3 of The Organon of the Healing Art http://www.homeopathyhome.com/reference/organon/organon.html.