Sherlock Holmes' 7 Rules of Scientific Thinking
Sherlock Holmes’
7 Rules
of
Scientific
Thinking
(compiled by John
Sherwood)
1. “
One should always
look for a possible
alternative and
provide against it.
It is the first rule
of criminal
investigation.”
2.
“
I never guess.
It is a capital
mistake to theorize
before one has
data. Insensibly
one begins to twist
facts to suit
theories, instead
of theories to suit
facts.”
3. “
Use your time
sparingly.
Determine what you
have. Then
determine what you
need. Then look for
what you need in
the place where it
must be.”
4.
“
There is
nothing so
important as
trifles. Never
trust to general
impressions, but
concentrate
yourself upon
details.”
5. “
Singularity is
almost invariably a
clue.”
6. “
It is a mistake to
con-found strangeness
with mystery. The most
common- place crime is
often the most
mysterious, because it
presents no new or
special features from
which deductions may
be drawn.”
7. “
When you have
eliminated the
impossible, whatever
remains, however
improbable, must be
the truth.”
Explore Sherlock Holmes' principles of scientific thinking, guiding you through criminal investigations with wisdom like avoiding guesswork, focusing on details, and eliminating the impossible to uncover the truth.
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Presentation Transcript
Sherlock Holmes 7 Rules of Scientific Thinking (compiled by John Sherwood)
1. One should always look for a possible alternative and provide against it. It is the first rule of criminal investigation.
2. I never guess. It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit
3. Use your time sparingly. Determine what you have. Then determine what you need. Then look for what you need in the place where it must be.
4. There is nothing so important as trifles. Never trust to general impressions, but concentrate yourself upon details.
5. Singularity is almost invariably a clue.
6. It is a mistake to con-found strangeness with mystery. The most common- place crime is often the most mysterious, because it presents no new or special features from which deductions may
7. When you have eliminated the impossible, whatever remains, however improbable, must be the truth.
