Gestalt psychology is an important means to understand human cognitive processes.

He is exactly in the state of 'A frog in a well does not know the vast ocean.'

He spoke of his big dreams, saying, 'How can a sparrow understand the ambitions of a swan?'

He is an expert in computational linguistics and is involved in the development of artificial intelligence.

He deeply believes in the principles of national socialism.

He explained the importance of studying while young, saying 'If you do not study when you are young, it will be difficult to learn when you are old.'