"It could be analyzed as follows:

"First, to see;

"Secondly, to hear.

"The functions of the other senses come afterward, and their
susceptibility can attract our attention to the sensations which they
give us, such as the sense of smell, of touch, of taste.

"These purely physical sensations possess, however, a moral
signification, from which we are permitted to make valuable deductions.

"The first two have three distinct phases:

"First degree, to see.

"Second degree, to look.

"Third degree, to observe.

"If we see a material, its color strikes us first and we say: I have seen
a red or yellow material, and this will be all.

"Applying ourselves more closely, we look at it and we define the
peculiarities of the color. We say: it is bright red or dark red.

"In observing it we determine to what use it is destined.

"The eye is attracted by: