I am convinced that this is the only means of advancing science, of clearing the mind from a confused heap of contradictory observations, that do but perplex and puzzle the Student, when he compares them, or misguide him if he gives himself up to their authority; but bringing them under one general head, can alone give rest and satisfaction to an inquisitive mind.

Few have been taught to any purpose who have not been their own teachers.

And he who does not know himself does not know others, so it may be said with equal truth, that he who does not know others knows himself but very imperfectly.

All the gestures of children are graceful; the reign of distortion and unnatural attitudes commences with the introduction of the dancing master.

Common observation and a plain understanding is the source of all art.

The first degree of proficiency is, in painting, what grammar is in literature, a general preparation for whatever the student may afterward choose for more particular application. The power of drawing, modeling, and using colors, is very properly called the language of the art.

Excellence is never granted to man but as the reward of labor. It argues no small strength of mind to persevere in habits of industry without the pleasure of perceiving those advances, which, like the hand of a clock, whilst they make hourly approaches to their point, yet proceed so slowly as to escape observation.