要快乐，我们不必太在意别人。

Education is the foundation of conservation—people protect what they understand.

Trust is earned through actions, not words.

The greatest education in the world is watching the masters at work.

事实上，今天的美国女性比以往任何时候都拥有更多的自由和机会。

数学不仅仅是关于数字、方程、计算或算法，而是关于理解。