Words are important: see lecture materials. Words are important: read the following short article by Thomas Sowell: http://seattlecentral.org/faculty/jhubert/sowellwords.html
In what ways do you "discriminate?"
1 a : to make a distinction <discriminate among historical sources> b : to use good judgment
2 : to make a difference in treatment or favor on a basis other than individual merit <discriminate in favor of your friends> <discriminate against a certain nationality>
So in other words, discriminating is making a choice, based either on good judgment (1) or on something other than individual merit (2). I have discriminating taste in food. I choose things that taste good. I also tend to think people from North Idaho are prejudiced after having lived there 12 years. However, many are not but I assume they are until I know better.