Another complication in applying LDA and Fisher's discriminant to real data occurs when the number of observations of each sample does not exceed the number of samples.

The deepness of a voice is not an accurate guide to whether someone is muscular or weedy. Instead, people rely on a subconscious, mysterious 'x-factor' in the voice to work out someone's physique.

Since human memory is fallible, and of course, new members or visitors don’t always know the history, reputation systems are built into web software to track behavior and how the community judges it.

Just allow the forms of this moment to be as they are without labeling, judging or interpreting.

This is what we call taste in literature.