The most important principle of positive psychology is that other people matter.

The stranger is close to us, insofar as we feel between him and ourselves common features of a national, social, occupational, or generally human, nature. He is far from us, insofar as these common features extend beyond him or us, and connect us only because they connect a great many people.

我不是说唱歌手，我是一个埃及语的传奇。

The increase of national wealth depends chiefly upon the increase of production.