Good science requires patience and persistence.

Tradition and modernity are not opposites; they can coexist and enrich each other.

Children have real understanding only of that which they invent themselves, and each time that we try to teach them something too quickly, we keep them from reinventing it themselves.

The task of psychology is to discover the laws of mental structure.

Theatre is the art form that most directly confronts the human condition.

我不想孤单，我想被单独留下。