The greatest happiness is to know the source of unhappiness.
每一个心理行为都在生活的经济中有其位置。
每个孩子都应该在他们读的故事中看到自己。
The beauty of physics lies in its ability to explain the complex with the simple.
"A character in a novel has more freedom than his creator - this is the irony that sustains my writing."
我愿你快乐，即使你的快乐不再是因为我。
The task of the leader is to get his people from where they are to where they have not been.
The world is full of obvious things which nobody by any chance ever observes.