“Opportunity marries with circumstance and is midwife to the resultant bartering of public office. The mutuality is advantage to the parties involved merely facilitates the spread of such practices. When it reaches the point of being commonplace and is pragmatically perceived as the most practical means of getting things done, it has become systemic and difficult to eradicate.”

Obituary for physicist and philosopher Ernst Mach (Nachruf auf Ernst Mach), Physikalische Zeitschrift 17 (1916), p. 101
1910s
Context: How does it happen that a properly endowed natural scientist comes to concern himself with epistemology? Is there not some more valuable work to be done in his specialty? That's what I hear many of my colleagues ask, and I sense it from many more. But I cannot share this sentiment. When I think about the ablest students whom I have encountered in my teaching — that is, those who distinguish themselves by their independence of judgment and not just their quick-wittedness — I can affirm that they had a vigorous interest in epistemology. They happily began discussions about the goals and methods of science, and they showed unequivocally, through tenacious defense of their views, that the subject seemed important to them.
Concepts that have proven useful in ordering things easily achieve such authority over us that we forget their earthly origins and accept them as unalterable givens. [Begriffe, welche sich bei der Ordnung der Dinge als nützlich erwiesen haben, erlangen über uns leicht eine solche Autorität, dass wir ihres irdischen Ursprungs vergessen und sie als unabänderliche Gegebenheiten hinnehmen. ] Thus they might come to be stamped as "necessities of thought," "a priori givens," etc. The path of scientific progress is often made impassable for a long time by such errors. [Der Weg des wissenschaftlichen Fortschritts wird durch solche Irrtümer oft für längere Zeit ungangbar gemacht. ] Therefore it is by no means an idle game if we become practiced in analysing long-held commonplace concepts and showing the circumstances on which their justification and usefulness depend, and how they have grown up, individually, out of the givens of experience. Thus their excessive authority will be broken. They will be removed if they cannot be properly legitimated, corrected if their correlation with given things be far too superfluous, or replaced if a new system can be established that we prefer for whatever reason.

"Hic et Ille", p. 105
The Dyer's Hand, and Other Essays (1962)

Aristippus, 4.
The Lives and Opinions of Eminent Philosophers (c. 200 A.D.), Book 2: Socrates, his predecessors and followers

As quoted in Thinking to Some Purpose (1939), p. 206

Source: Spiritual Perspectives And Human Facts

Bk. I, Ch. 10
Little Dorrit (1855-1857)
Variant: Whatever was required to be done, the Circumlocution Office was beforehand with all the public departments in the art of perceiving — HOW NOT TO DO IT.

Source: The Confessions of Aleister Crowley: An Autohagiography

The People's Rights [1909] (London: Jonathan Cape, 1970), p. 24
Early career years (1898–1929)

The Infernal Marriage, part 3 (1834).
Books