Forty hour workweeks are a relic of the Industrial Age. Knowledge workers function like athletes - train and sprint, then rest and reassess.
Twitter is the only social network that connects people over ideas rather than over pre-existing relationships.
Networking is overrated. Become first and foremost a person of value and the network will be available whenever you need it.
Following your genuine intellectual curiosity is a better foundation for a career than following whatever is making money right now.
1999 - $5M to launch a product, 30M serious computer users. 2014 - $5K to launch, 3B serious phone users. Leverage / $ is up 100,000x.