In other words, knowledge of the external world begins with an immediate utilisation of things, whereas knowledge of self is stopped by this purely practical and utilitarian contact.
When I was in first grade, everyone made fun of my name, of course. I think it's kind of a big name to hold up when you're nine years old. It seemed goofy. I used to tell people I wanted to change the world and they used to think, 'This kid's really weird'.
In the 19th Century people were looking for the Northwest Passage. Ships were lost and brave people were killed, but that doesn't mean we never went back to that part of the world again, and I consider it the same in space exploration.
I know that when I grew up I was pretty sheltered, and didn't come to understand much about the world until I was in my really late teens and early twenties, and that process continues.
Those who decide to use leisure as a means of mental development, who love good music, good books, good pictures, good plays, good company, good conversation - what are they? They are the happiest people in the world.
