在心理学领域,正常与异常之间的界限往往是模糊和主观的。
In the realm of psychology, the line between normal and abnormal is often blurred and subjective.
To do great things is difficult,but to command great things is more difficult.
聪明的人心里明白而言语不必太多。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
"In der Literatur geht es nicht darum, Antworten zu geben, sondern Fragen zu stellen."