“A mind of moderate capacity which closely pursues one study must infallibly arrive at great proficiency in that study.”
Source: Frankenstein
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Mary Wollstonecraft Shelley 94
English novelist, short story writer, dramatist, essayist, … 1797–1851Related quotes

"Illustrations of the Logic of Science" First Paper — The Fixation of Belief", in Popular Science Monthly, Vol. 12 (November 1877)
Context: Few persons care to study logic, because everybody conceives himself to be proficient enough in the art of reasoning already. But I observe that this satisfaction is limited to one's own ratiocination and does not extend to that of other men.
We come to the full possession of our power of drawing inferences the last of all our faculties, for it is not so much a natural gift as a long and difficult art.

“Efficiency is the capacity to bring proficiency into expression.”
Quotations from Gurudev’s teachings, Chinmya Mission Chicago

20 July 1848
Journal Intime (1882), Journal entries
In Search of the Miraculous (1949)

As quoted in "10 Questions for Elie Wiesel" by Jeff Chu in TIME (22 January 2006) http://www.time.com/time/magazine/article/0,9171,1151803,00.html
Context: I believe mysticism is a very serious endeavor. One must be equipped for it. One doesn't study calculus before studying arithmetic. In my tradition, one must wait until one has learned a lot of Bible and Talmud and the Prophets to handle mysticism. This isn't instant coffee. There is no instant mysticism.
“To acquire knowledge, one must study; but to acquire wisdom, one must observe.”
As quoted in Courage: the heart and spirit of every woman : reclaiming the forgotten virtue (2001) by Sandra Ford Walston

Source: Quoted in Herbert Howarth, Notes on Some Figures behind T. S. Eliot (Boston: Houghton Mifflin, 1964), p. 89