Since language is an outward sign of thought, one can think with or without language. The visualization of images in the mind is an example of thinking without language as we know it. Everything that enters the mind through the senses will be caught by the "thinking" mind even though "it appears not thinking." This information forms what is called the primary concept, namely the capture of a fact that we understand as a mental abstraction in the mind. ___________________________________________
___________________________________________ The mind can reproduce or recall information it once knew or produce new information in the form of the concepts of reducing, combining, and transferring what is commonly called the production of secondary concepts. A blind person / total color blindness since birth cannot recognize the concept of color. But can recognize the concept of form. A blind person will recognize the shape of his sense of taste. He will abstract in his mind the forms. The more perfect the touch, the more perfect the mental abstraction construction of forms is. ___________________________________________
___________________________________________ Facts are not always something that can be sensed, but we can prove a fact through the medium of other facts. It has to do with "necessary" knowledge or posibility. Like the fact there is smoke is evidence of combustion. The fact that the color of smoke is evidence of the possibility of the fact that a certain burning material, copper sulfate is often sold by fish traders, will produce green colored flames, what must be observed is what the term / symbol refers to. If the subjects have an agreement then the communication is successful. Because the symbols used in communication have been understood in the same way by the communicants.