"All perceiving is also thinking, all reasoning is also intuition, all observation is also invention"

This quote by Rudolf Arnheim suggests that the processes of viewing, reasoning, and observing are all linked and adjoined. He is recommending that perceiving is not simply a passive act of taking in details, but also involves thinking and intuition. Similarly, thinking is not just a rational process, but also includes intuition. Lastly, observing is not simply a passive act of taking in information, however also includes creation.

To put it simply, Arnheim is suggesting that the procedures of viewing, reasoning, and observing are all active procedures that include both conscious and unconscious idea. He is recommending that we are constantly taking part in a procedure of active analysis and innovation when we view, reason, and observe. This quote motivates us to be conscious of the active function we play in analyzing and constructing our reality.