运气是准备遇到机会的结果。

The essence of mathematics lies in its freedom.

仅仅那山学会下一而是不够的，种大需里当上如有阳光、自由，和一点花的芬芳。

The stranger is an element of the group itself, not unlike the poor and sundry 'inner enemies'—an element whose membership within the group involves both being outside it and confronting it.