One can see, one can look, and one can observe. These three words denote the same action, yet each word suggests something different. By observing we understand something about what we see; by seeing we take full notice of it; but by looking we glance at it without necessarily understanding it or taking notice of it. And so there are three conditions: looking at the surface of a thing, looking at a thing properly, and looking at a thing with real observation and understanding it at the same time.