What one dislikes in line, form, color, smell, taste, or sound, or in sense or idea, is not disliked because it deserves to be so, but because it is foreign to one's nature. Once a person becomes accustomed to anything he develops love for it in himself. Therefore, often some people have a liking for certain things which many others dislike, or a dislike of certain things which many others like. Often when travelling in the train a person feels more comfortable if no one else comes into his compartment, but once someone has come and sat there, if they have spoken together and become acquainted, then they wish to travel together.