I don't think you can ever be too prepared.

The strength of a society lies in its ability to balance individual freedom with social cohesion.

Leadership is about making the tough decisions and standing by them.

The world needs reliable energy, and coal still plays a critical role in providing it.

We've had three big ideas at Amazon that we've stuck with for 18 years， and they're the reason we're successful:Put the customer first. Invent. And be patient.