The unity of Europe is a historical necessity.
大自然为我们提供了研究生物学的惊人工具;我们只需要知道去哪里寻找。
我从不认为任何事情是理所当然的。
Coal has been the backbone of industrial progress, but its future must balance economic needs with environmental responsibility.
人的本性是天生的质朴;善良是王道教化的结果。