“Never trust to general impressions, my boy, but concentrate yourself upon details.”
Source: The Adventures of Sherlock Holmes
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Arthur Conan Doyle 166
Scottish physician and author 1859–1930Related quotes

“Trust the first impression that a person's spontaneous look conveys to you. It never fails.”
Original: Fidatevi della prima impressione che vi trasmette lo sguardo spontaneo di una persona. Non fallisce mai.
Source: prevale.net

As quoted in Just Before Dark : Collected Nonfiction (1999) by Jim Harrison, p. 39

“Put your trust in God, my boys, and keep your powder dry!”
From the poem "Oliver's Advice" http://books.google.com/books?id=JmEaAQAAIAAJ&dq=%22Oliver%27s+Advice%22+Cromwell&q=%22Oliver%27s+Advice%22+Cromwell#v=snippet&q=%22Oliver's%20Advice%22%20Cromwell&f=false by William Blacker, published under the pseudonym Fitz Stewart in The Dublin University Magazine, December 1834, p. 700. This line by a different Colonel Blacker is paraphrased from an attribution to Oliver Cromwell (hence the poem's title).
Misattributed

“Truth does not consist in minute accuracy of detail; but in conveying a right impression.”
Reported in Josiah Hotchkiss Gilbert, Dictionary of Burning Words of Brilliant Writers (1895), p. 603.