一个人的真正价值主要取决于他从自我中解放出来的程度和意识。

The psychologist must be an impartial observer.

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.

测量地球是地理学的基础。

唯一真正的力量是爱的力量。