心理学的方法必须像自然科学的方法一样精确。
The method of psychology must be as exact as the methods of the natural sciences.
如果攻击特别伤人，我总是非常高兴，因为我想，如果他们攻击个人，这意味着他们没有留下任何政治论点。
解释：不可以不知道活着的乐趣，也不可以不知道虚度光阴的担忧。
我不理会学科的地域界限，我只是抓住我所能抓住的所有大思想。
My inspiration comes from dreams and also reality.
绘本中的沉默与图像和文字同样重要。
In science, the most exciting phrase to hear is not 'Eureka!' but 'That's funny...'
Happiness is not a right; it is a rare and precious exception.
The land is our mother, the rivers our blood. We must protect her, for she is our life.