The true challenge in mathematics is not solving problems, but asking the right questions.

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.

We are in the business of helping our customers succeed, not just selling them products.

The only way to do great work is to love what you do. If you haven't found it yet, keep looking. Don't settle.

知识不会使我们更丰富；它使我们越来越远离神秘世界——这个我们曾经的天然家园。