WIST

The greatest obstacle to discovery is not ignorance — it is the illusion of knowledge.

Daniel J. Boorstin (b. 1914) American historian, educator, writer
In Carol Krucoff, “The 6 O’Clock Scholar,” Washington Post (29 Jan 1984)
Full text.

Our envy always lasts longer than the happiness of those we envy.

Heraclitus (c.540-c.480 BC) Greek philosopher [also Heracleitus]
(Attributed)

Any theory and set of practices is dogmatic which is not based upon critical examination of its own underlying principles.

John Dewey (1859-1952) American teacher and philosopher
Experience and Education, ch. 1 (1938)

A brave colonel makes a brave battalion.

Frederick II (1712-1786) King of Prussia (a.k.a. Frederick the Great)
(Attributed)

Quoted in R.R. Palmer, "Frederick the Great, Guibert, Bulow: From Dynastic to National War," in E. Earle (ed.), Makers of Modern Strategy (1943)

I have said what I meant and meant what I said. I have not done as well as I should like to have done, but I have done my best, frankly and forthrightly; no man can do more, and you are entitled to no less.

Adlai Ewing Stevenson (1900-1965) American politician
Speech (3 Nov 1952)