接种天花变得不再必要。

译文：要成就大事，不应该去和众人谋划。

The healthy social life is found when in the mirror of each human soul the whole community finds its reflection, and when in the community the virtue of each one is living.

The process of mathematical discovery is as important as the discovery itself.

Children understand more than we often give them credit for.

线上线下融合是未来零售的关键。