It is very easy to talk about equality, and it is very easy to consider all kinds of excellent points of view. It is also easy to talk about wonderful moral principles; but if we see the difference there is between one soul and another, which is sometimes as wide as the distance between earth and sky, we stand helpless before natures that cannot be changed. If we say that horns can be turned into hooves and that hooves can be turned into horns it may be believed, but if we say that a person has changed his nature it will be doubted.