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.

Psychology must study the adaptive functions of thought and behavior.

I grew up on the land, and I knew what hunger was.

数学的美只向更有耐心的追随者展示。

The most perfect education, in my opinion, is such an exercise of the understanding as is best calculated to strengthen the body and form the heart.