“Technical difficulties of all sorts have been ignored, certainly, but also ignored are means as yet unknown which may come any day to accelerate technical progress as violently as did the advent of the thermionic tube.”
As We May Think (1945)
Context: Thus science may implement the ways in which man produces, stores, and consults the record of the race. It might be striking to outline the instrumentalities of the future more spectacularly, rather than to stick closely to the methods and elements now known and undergoing rapid development, as has been done here. Technical difficulties of all sorts have been ignored, certainly, but also ignored are means as yet unknown which may come any day to accelerate technical progress as violently as did the advent of the thermionic tube.
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Vannevar Bush 57
American electrical engineer and science administrator 1890–1974Related quotes

In re North, Ex parte Hasluck (1895), L. R. 2 Q. B. D. [1895], p. 269.

Encyclical Letter Spe Salvi of the Supreme Pontiff Benedict XVI to the Bishops Priests and Deacons Men and Women Religious and All the Lay Faithful On Christian Hope, 30 November 2007
2007

Source: The Winds of Limbo aka The Fireclown (1965), Chapter 4 (p. 151)

In Encyclical Letter Spe Salvi http://www.vatican.va/holy_father/benedict_xvi/encyclicals/documents/hf_ben-xvi_enc_20071130_spe-salvi_en.html (30 November 2007)
2007

The Art of Measurement (1525).
Philip Selznick, quoted in Charles Perrow (1960, p.4), as cited in: Owen A. Jones. The Sources of Goal Incongruence in a Public Service Network. 2013. p. 35-36
Sermon (1899)