In the world of mathematics, imagination is more important than knowledge.
真正的美国发现还在我们面前。我们精神、我们人民、我们强大而不朽的土地的真正实现,尚未到来。
Hope is not a feeling; it is a doable thing.
Leadership means making tough decisions today that will benefit the company in the long run.
语法和语义之间的相互作用是形式语言研究的核心。
I'm not afraid to take a stand. Everybody, come take my hand.