But if the dangers, confusions and disasters that crowd upon man in these days are enormous beyond any experience of the past, it is because science has brought him such powers as he never had before.

• 但是，假如今天逼近人类的各种危险、动乱以及灾难远远超过以往历史的话，这是因为科学给人类带来了前所未有的力量。