Research on Letters in Scarlet

◆I think the human brain is like an empty attic, and some furniture should be put into it selectively. Only a fool would try to fit in all the junk he encountered. In this way, the knowledge that is useful to him is squeezed out; or, at most, it is mixed with many other things.

◆What does this (solar system) have to do with me? You say we go around the sun, but even if we go around the moon, what does this have to do with me or my work? "

◆A logician does not need to see or hear about the Atlantic Ocean or Niagara Falls. He can deduce its possible existence from a drop of water, so the whole life is a huge chain. As long as Once you see one link, you can deduce the situation of the entire chain.

◆The science of inference and analysis, like other skills, can only be mastered after long-term and patient study; although people do their best. A lifetime of effort may not lead to reaching the pinnacle. Before starting to study the extremely difficult spiritual and psychological aspects of things, beginners may wish to start by mastering simpler problems, such as meeting a person. It is necessary to identify the person's history and occupation. This kind of exercise may seem childish and boring, but it can sharpen a person's observation ability and teach people: where to observe and what to observe. What.

◆There is nothing new in the world, it has all been done before.

◆What exactly have you done in this world? It doesn't matter. What matters is how you can make people believe what you have done.

◆If a person wants to explain nature, his imagination must be like nature. Vast.

◆Criminal behaviors all have very similar features. If you know the details of a thousand cases, but can’t explain the thousand and one cases, then that’s it. It's strange.

◆It's a mistake to confuse strangeness with mystery. The most ordinary crimes are often the most mysterious, because there is nothing new or special about them. It's enough to serve as a basis for inference.

◆As soon as the officials show up, they keep silent. However, these little guys can go anywhere and find out everything. It's like a needle tip, seamless.

Four signatures

◆My physique is very special. I don't feel tired at all when I am idle. Things will make me exhausted.

◆I am restless and restless when I have nothing to do.

◆I am restless. Pursue spiritual excitement.

◆I can’t live without using my brain.

◆Even the best women can never fully trust them.

< p>◆But love is an emotional thing, which is inconsistent with calm thinking, which I think is the most important thing. I will never get married, so as not to affect my judgment.

◆Emotional effect will be. Affecting sober sanity.

◆Excluding other factors, the rest must be the truth.

◆Didn’t I tell you so many times that when you put it into perspective? After all possible factors have been eliminated, no matter what is left - no matter how unbelievable it is - is that the truth?

◆Detection is - or should be - an exact science, and it should be studied with the same dispassionate rather than emotional approach.

◆I never make any exceptions. There are no exceptions to the law.

◆Winwood Read has a good explanation of this problem. He argued that although each person is a difficult mystery, when humans are gathered together, there are laws. For example, you cannot predict a person's personality, but you can definitely know the human nature. Personalities are different, but personality is eternal. This is what statisticians say.

◆I never guess. Guessing is a very bad habit and is harmful to logical reasoning.