Theoretically there is a perfect possibility of happiness: believing in the indestructible element within oneself, and not striving towards it.

Psychology must avoid all forms of mentalism.

成人必须了解，儿童需要运用双手，并认同儿童第一次运用双手时，只是工作本能的展现。

地理学的研究是对地球作为人类居住地的研究。

The greatest thing about tomorrow is, I will be better than I am today.

沉默是艺术中最响亮的声音。