Not less than two hours a day should be devoted to exercise, and the weather should be little regarded.

I am an Epicurean. I consider the genuine (not the imputed) doctrines of Epicurus as containing everything rational in moral philosophy which Greek and Roman leave to us.

I never considered a difference of opinion in politics, in religion, in philosophy, as cause for withdrawing from a friend.

Leave all the afternoon for exercise and recreation, which are as necessary as reading. I will rather say more necessary because health is worth more than learning.

Many writers upon the science of political economy have declared that it is the duty of a nation first to encourage the creation of wealth; and second, to direct and control its distribution. All such theories are delusive.

My book 'The Exciting Adventures of Boo' was first published when I was fifteen. It is a children's book with ten different stories. In each story, the main character Boo learns a lesson - one of the ten most important lessons I learned as a kid. I also donated all the money from my books I personally sold to my local ASPCA Animal Shelter.

I think one of the most pervasive evils in this world is greed and acquiring money for money's sake. Once you have six houses and a plane, it's just about a number. It's never been anything I understood.

Ultimately, so many things come down to money, but particularly when it comes to superheroes - people really thought that only men loved action movies and only men would go see a superhero movie.