The true discovery of America is before us. The true fulfillment of our spirit, of our people, of our mighty and immortal land is yet to come.
解释:往往在你觉得是轻而易举的时候,困难也就跟着来了。
The best literature is born from conflict, from the struggle between desire and morality.
The robustness of topological states against local perturbations is a testament to the power of topology in protecting quantum information.