The mother-child relationship is paradoxical and, in a sense, tragic. It requires the most intense love on the mother's side, yet this very love must help the child grow away from the mother, and to become fully independent.

每一块石头都有一个故事，而我们的职责是发掘它的潜力。

Success is built on a foundation of failure.

我不让任何人告诉我能做什么或不能做什么。

数学的本质在于它的自由。