1923-1926 年冰心在美国留学期间，对美国文化的体验由表及里逐步深入，
情感上由隔膜转向亲近，深入体会到超越种族文化差异的爱，这使其思想观念发 生重大改变，对爱的认知实现了由家庭之爱到人类之爱的转变，从而将作者创作中 的核心观念“爱的哲学”推向了高潮。
While studying abroad in the U.S.A. from 1923 to 1926, Bing Xin experienced American cultures from the outside to the inside, especially the cross-racial and cross-cultural love that Americans gave her, which resulted in not only the change of her feelings towards them from strangeness to friendliness, but also the shift of her perspective on love from family love to human love, and thus contributed significantly to the completeness of the key idea in her writings, "the philosophy of love".
