Envy and jealousy are the private parts of the human soul. Perhaps the comparison can be extended.

One of the problems when you become successful is that jealousy and envy inevitably follow. There are people-I categorize them as life's losers-who get their sense of accomplishment and achievement from trying to stop others. As far as I'm concerned, if they had any real ability they wouldn't be fighting me, they'd be doing something constructive themselves.

The higher you ascend, the smaller you appear to the eye of envy. But most of all they hate those who fly.

I love him who wants to create over and beyond himself and thus perishes.

My ambition is to say in ten sentences what everyone else says in a book - what everyone else does not say in a book.

God is able to create particles of matter of several sizes and figures and perhaps of different densities and forces, and thereby to vary the laws of nature, and make worlds of several sorts in several parts of the Universe.