承认规则作为一种社会事实存在。
The theatre is the place where one goes to hear the truth spoken out loud.
我已将这一原则——每一微小变异若有益便被保存——称为自然选择。
The coal industry must evolve or risk becoming obsolete. Adaptation is the key to survival.
Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.