Summary:

- The article discusses the ability to think without using words, known as "mentalese" or "language of thought." It suggests that even without verbal language, humans can still engage in complex thought processes.

- The article explains that while language is a powerful tool for communication, it is not necessary for all types of thinking. Nonverbal thinking, such as visualizing concepts or solving problems, can occur independently of language.

- The article highlights research that suggests the human mind can operate on multiple levels, with language-based thinking coexisting alongside other forms of cognition that do not rely on verbal expression.