“I don't think you can do anything for anyone without giving up something of your own.”
The Natural (Farrar, Straus and Giroux, 2003) p. 149 http://books.google.com/books?id=wCWhegoGUxwC&q=%22I+don't+think+you+can+do+anything+for+anyone+without+giving+up+something+of+your+own%22&pg=PA149#v=onepage. (originally published 1952)
“Do not let anyone else run your business.”
Source: The Intelligent Investor (1973) (Fourth Revised Edition), Chapter 20, "Margin of Safety": The Central Concept, p. 286
http://www.popmonk.com/actors/leonardo-dicaprio/quotes-leonardo-dicaprio.htm
Interview in Penthouse (June 1983)
Context: I don't think that anyone should think for you. And that's exactly what cults do. All cults, including Scientology, say, "I am your mind, I am your brain. I've done all the work for you, I've laid the path open for you. All you have to do is turn your mind off and walk down the path I have created." Well, I have learned that there's great strength in diversity, that a clamorous discussion or debate is very healthy and should be encouraged. That's why I like our political setup in the United States: simply because you can fight and argue and jump up and down and shout and scream and have all kinds of viewpoints, regardless of how wrongheaded or ridiculous they might be. People here don't have to give up their right to perceive things the way they believe. Scientology and all the other cults are one-dimensional, and we live in a three-dimensional world. Cults are as dangerous as drugs. They commit the highest crime: the rape of the soul.
