My notes from Hackers & Painters by Paul Graham:
The way to create something beautiful is often to make subtle tweaks to something that already exists, or to combine existing ideas in a slightly new way.
There are only two things you have to know about business: build something users... See more
When startups start taking off, the founders usually can't tell what's changed. It's some combination of all the random things they did to make it take off, but it's hard to say which ones.