[Sherlock Holmes:] The temptation to form premature theories upon insufficient data is the bane of our profession.
His sanguine spirit turns every firefly into a star.
It is, of course, a trifle, but there is nothing so important as trifles.
It is an old maxim of mine that when you have excluded the impossible, whatever remains, however improbable, must be the truth.
It is a capital mistake to theorize before one has data.
For the one and only time I caught a glimpse of a great heart as well as of a great brain.