"The most powerful tool we have as leaders is our own example."
You don't need a perfect voice to move people; you just need to sing from the heart.
一个好的决策是基于现有最佳信息，并在清楚理解所涉及的权衡后做出的。
The idea of America is so important to me. It's about freedom, democracy, and the ability to create your own destiny.
在数学科学中，比其他任何学科都更常见的是，那些一度最抽象、似乎远离一切实际应用的真理，在下一个时代会成为深刻物理研究的基础，并最终体现在某些实用发明中。
The unsaid is often more powerful than the said.
The harder you work, the luckier you get.