The strength of a nation's institutions is not just in their formal rules, but in the informal norms that govern behavior and the degree to which they are internalized by the population.

遗传密码的发现是理解生命分子基础的一个里程碑。

曾有人问过张柏芝，如果给你一个重返18岁的机会，你会怎么选择呢？

我们必须倾听土地和动物的声音——它们能教会我们许多关于可持续实践的知识。