The only thing that one really knows about human nature is that it changes. Change is the one quality we can predicate of it. The systems that fail are those that rely on the permanency of human nature, and not on its growth and development.

Si quiere usted viciar un carácter no tiene más que hacer que intentar reformarlo.

He is really not so ugly after all, provided, of course, that one shuts one's eyes, and does not look at him.

The highest as the lowest form of criticism is a mode of autobiography. Those who find ugly meanings in beautiful things are corrupt without being charming. This is a fault.

Pain is not the ultimate mode of perfection. It is merely provisional and a protest. It has reference to wrong, unhealthy, unjust surroundings. When the wrong, and the disease, and the injustice are removed, it will have no further place. It will have done its work. It was a great work, but it is almost over. Its sphere lessens every day.

It must be remembered that while sympathy with joy intensifies the sum of joy in the world, sympathy with pain does not really diminish the amount of pain. It may make man better able to endure evil, but the evil remains.

The systems that fail are those that rely on the permanency of human nature, and not its growth and development.