Abstract
The paper defines units of cognition from data, through; information, concept, knowledge, and to wisdom, applying the Semantic Ladder. This concept is later used in describing different levels of computer information systems and defining a process of decision-making. Finally, the Semantic Ladder is applied in understanding art, where certain compositions reflect different units of cognition, including the simplest and most complex ones. This study implies that wisdom as the ultimate unit of cognition is the result of hierarchical processing of data, information, concept, and knowledge. What does it mean for civilization? The more we know, the more we want; and we may be in more trouble! Can we overcome knowledge that we created and become wiser?