The most profound discoveries in mathematics often come from questioning the most basic assumptions.
不算过错,有多少人为此蒙蔽良心;无可奈何,有多少体面以此为借口。
跨行业合作是解决我们在粮食安全方面面临的全球挑战的关键。
The development of attention in childhood is a foundation for self-regulation and academic achievement.
"The truth is rarely pure and never simple."