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.
If you confront anyone who has lied with the truth, he will usually admit it - often out of sheer surprise. It is only necessary to guess right to produce your effect.
In old days the public didn't really mind much about accuracy, but nowadays readers take it upon themselves to write to authors on every possible occasion, pointing out flaws.
There is no telling what a human character is. Until the test comes. To most of us the test comes early in life. A man is confronted quite soon with the necessity to stand on his own feet, to face dangers and difficulties and to take his own line of dealing with them. It may be the straight way, it may be the crooked way --- whichever it is, a man usually learns early just what he is made of.
Any medical man who predicts exactly when a patient will die, or exactly how long he will live, is bound to make a fool of himself. The human factor is always incalculable. The weak have often unexpected powers of resistance, the strong sometimes succumb.
The point is that one's got an instinct to live. One doesn't live because one's reason assents to living. People who, as we say, 'would be better dead' don't want to die! People who apparently have everything to live for just let themselves fade out of life because they haven't got the energy to fight.
Now I am old-fashioned. A woman, I consider, should be womanly. I have no patience with the modern neurotic girl who jazzes from morning to night, smokes like a chimney, and uses language which would make a billingsgate fishwoman blush!