“Buy what you don’t have yet, or what you really want, which can be mixed with what you already own. Buy only because something excites you, not just for the simple act of shopping.”

Pet Sematary (1983)
Source: It

Source: Pet Sematary

Source: Start with Why: How Great Leaders Inspire Everyone to Take Action

Re: creation of lisp machine/lispOS http://groups.google.com/group/comp.lang.lisp/msg/c2fd86a7e43ac7aa (Usenet article).
Usenet articles, Miscellaneous

Interview in Forbes magazine (1 November 1974)
Context: Draw a circle around the businesses you understand and then eliminate those that fail to qualify on the basis of value, good management and limited exposure to hard times. … Buy into a company because you want to own it, not because you want the stock to go up. … People have been successful investors because they've stuck with successful companies. Sooner or later the market mirrors the business.

Delusion for a Dragon Slayer (1966)
Context: "Heaven is what you mix all the days of your life, but you call it dreams. You have one chance to buy your Heaven with all the intents and ethics of your life. That is why everyone considers Heaven such a lovely place. Because it is dreams, special dreams, in which you exist. What you have to do is live up to them."
"I—" started Griffin, but the wizard cut him off with a blink.
"No, listen, please, because after this, all the magic stops, and you have to do it alone.
“You create your own Heaven, and you have the opportunity to live in it, but you have to do it on your own terms, the highest terms of which you are capable. So sail this ship through the straits, navigate the shoals, find the island, overcome the foam-devil that guards the girl, win her love, and you’ve played the game on your own terms."

Cognitive Surplus : Creativity and Generosity in a Connected Age (2010)