我们这个时代最重要的政治挑战是创建强大、有效和负责任的国家。
有时候要大胆，有时候要小心，一个聪明人知道什么时候该怎么做。
The future belongs to those who believe in the beauty of their dreams.
Every discovery in science is built upon the work of countless others before us.
The harder you work for something, the greater you’ll feel when you achieve it.
如果战斗不可避免，先发制人。
世界是一个美丽的地方，但它有它的荆棘。