Crime is terribly revealing. Try and vary your methods as you will, your tastes, your habits, your attitude of mind, and your soul is revealed by your actions.

These little grey cells. It is up to them.

Words, mademoiselle, are only the outer clothing of ideas.

What good is money if it can't buy happiness?

It often seems to me that's all detective work is, wiping out your false starts and beginning again." Yes, it is very true, that. And it is just what some people will not do. They conceive a certain theory, and everything has to fit into that theory. If one little fact will not fit it, they throw it aside. But it is always the facts that will not fit in that are significant.

Real evidence is usually vague and unsatisfactory. It has to be examined---sifted. But here the whole thing is cut and dried. No, my friend, this evidence has been very cleverly manufactured---so cleverly that it has defeated its own ends.

Many homicidal lunatics are very quiet, unassuming people. Delightful fellows.