Exceed your customers' expectations. If you do, they'll come back over and over. Give them what they want — and a little more.

Those who do not have power over the story that dominates their lives, the power to retell it, rethink it, deconstruct it, joke about it, and change it as they change, truly are powerless, because they cannot think new thoughts.

有时候你必须先输才能赢。

"The struggle itself towards the heights is enough to fill a man's heart. One must imagine Sisyphus happy."

数学之美不在于其复杂性，而在于其简洁性以及它揭示隐藏真理的方式。