“The world is supposed to be full of possibilities, but they narrow down to pretty few in most personal experience.”
Lady Chatterley's Lover (1928)
Context: The world is supposed to be full of possibilities, but they narrow down to pretty few in most personal experience. There's lots of good fish in the sea... maybe... but the vast masses seem to be mackerel or herring, and if you're not mackerel or herring yourself you are likely to find very few good fish in the sea.
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D.H. Lawrence 131
English novelist, poet, playwright, essayist, literary crit… 1885–1930Related quotes
The Drunken Helmsman, p. 97
The Corrupt Society - From Ancient Greece To Present-Day America (1975)

"The Transuranium Elements : Present Status" Nobel Lecture (12 December 1951) http://www.nobelprize.org/nobel_prizes/chemistry/laureates/1951/seaborg-lecture.html
Context: I suppose that I should say a few words with respect to the possibility for future production and identification of additional transuranium elements, especially in view of the possibility of their production by heavy-ion bombardment of transuranium elements. As an aid to such a program the radioactive properties can be estimated, as I have already indicated, on the assumption of a smooth nuclear energy surface and the systematics of radioactivity. Again, I must emphasize that such considerations are negated in the event that a stable subshell of 148 neutrons should be found to exist, and this must be regarded as a definite possibility. It is interesting to note that our considerations on the systematics of spontaneous fission28 indicate that this method of decay will not compete seriously with radioactive decay until the region just beyond element 100. … These considerations illustrate clearly that one of the problems is that of conceiving means for producing nuclides of sufficiently high mass numbers with half-lives long enough for chemical identification. Thus, the serious problem is again the paucity of starting materials.

As quoted by Edward Teller, in Dr. Edward Teller's Magnificent Obsession by Robert Coughlan, in LIFE magazine (6 September 1954), p. 62 http://books.google.de/books?id=I1QEAAAAMBAJ&pg=PA62
As quoted by Edward Teller (10 October 1972), and A Dictionary of Scientific Quotations (1991) by Alan L. Mackay, p. 35
Variant: An expert is a man who has made all the mistakes which can be made in a very narrow field.

Source: The Tales of Alvin Maker, The Crystal City (2003), Chapter 3 “Fever” (p. 56).