Facebook is quite entrenched and has a network effect. It's hard to break into a network once it's formed.

The reality is gas prices should be much more expensive then they are because we're not incorporating the true damage to the environment and the hidden costs of mining oil and transporting it to the U.S. Whenever you have an unpriced externality, you have a bit of a market failure, to the degree that eternality remains unpriced.

There's a real opportunity to have a vertical takeoff and landing electric supersonic jet.

Failure is an option here. If things are not failing, you are not innovating enough.

Constantly seek criticism. A well thought out critique of what you're doing is as valuable as gold

Trying to read our DNA is like trying to understand software code - with only 90% of the code riddled with errors. It's very difficult in that case to understand and predict what that software code is going to do.

Many things are improbable, only a few are impossible.