我从不回头看，我总是向前看。

数学的美在于它揭示隐藏的对称性和真理的能力。

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.

最黑暗的角色往往是那些最能揭示人性本质的角色。