If you tell the truth, you don't have to remember anything.

发现的喜悦是推动数学家前进的动力。

Outstanding leaders go out of their way to boost the self-esteem of their personnel. If people believe in themselves, it's amazing what they can accomplish.

"La libertad no es un regalo, es una conquista diaria."

跨国合作是解决全球健康挑战的关键。