An icon is a symbol equally incomprehensible in all human languages An icon is a symbol equally incomprehensible in all human languages. There's a reason why humans invented phonetic languages. Jef Raskin, Steve Jobs iconographysymbols
Constrained by the medium The inevitable reciprocation that occurs between the act of drawing and the thinking associated with it. The hand moves, the mind becomes engaged, and vice versa. We might ask: How much does the medium of expression actually constrain a design process? A medium has a way of constraining our choices, and this influence may not involve conscious choice at all. The planner, in the end, sees and understands only those things for which they can provide expression. Peter G. Rowe, Design Thinking Michaelangelo's hammer constraintsexpressionmedia