It is all in the way of professional experience.

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.

Violence does, in truth, recoil upon the violent, and the schemer falls into the pit which he digs for another.

""Dear girl," continued Bob advancing with an imbecile grin upon his countenance, which he imagined no doubt to be a seductive smile, "fly with me! Be mine! Share with me the wild free life of a barrister! Say that you return the love which consumes my heart - oh, say it!" Here Bob put his hand over a hole in his waistcoat and struck a dramatic attitude.

[Sherlock Holmes:] The temptation to form premature theories upon insufficient data is the bane of our profession.

He foresaw that she would be very much more useful to him in the character of a free woman.

I'm not a psychopath, I'm a fully functioning sociopath. Do your research.