Inconsistency of All Human Characters

Lisa and I finished watching the 6 episode BBC created adaptation of Pride and Prejudice last night. The following quote is one that I find memorable:

"There are few people whom I really love, and still fewer of whom I think well. The more I see of the world, the more am I dissatisfied with it; and every day confirms my belief of the inconsistency of all human characters, and of the little dependence that can be placed on the appearance of merit or sense."
— Jane Austen (Pride and Prejudice)