thias, and our Tennyson and Hallam.
The sentiment of love has inspired countless masterpieces; without its
aid most of our fiction would lose its plot, and most of our poetry its
charm. Religious sentiment inspired Milton to write the world's greatest
epic, "Paradise Lost." The sentiment of patriotism has furnished an
inexhaustible theme for the writer and the orator. Likewise if we go
into the field of music and art, we find that the best efforts of the
masters are clustered around some human sentiment which has appealed to
them, and which they have immortalized by expressing it on canvas or in
marble, that it may appeal to others and cause the sentiment to grow in
us.

SENTIMENTS AS MOTIVES.--The sentiments furnish the deepest, the most
constant, and the most powerful motives which control our lives. Such
sentiments as patriotism, liberty, and religion have called a thousand
armies to struggle and die on ten thousand battlefields, and have given
martyrs courage to suffer in the fires of persecution. Sentiments of
friendship and love have prompted countless deeds of self-sacrifice and
loving devotion. Sentiments of envy, pride, and jealousy have changed
the boundary lines of nations, and have prompted the committing of ten
thousand unnamable crimes. Slowly day by day from the cradle to the
grave we are weaving into our lives the threads of sentiment, which at
last become so many cables to bind us to good or evil.

4. PROBLEMS IN OBSERVATION AND INTROSPECTION

1. Are you subject to the "blues," or other forms of depressed feeling?
Are your moods very changeable, or rather constant? What kind of a
disposition do you think you have? How did you come by it; that is, in
how far is it due to hereditary temperament, and in how far to your
daily moods?

2. Can you recall an instance in which some undesirable mood was caused
by your physical condition? By some disturbing mental condition? What is
your characteristic mood in the morning after sleeping in an
ill-ventilated room? After sitting for half a day in an ill-ventilated
schoolroom? After eating indigestible food before going to bed?

3. Observe a number of children or your classmates closely and see
whether you can determine the characteristic mood of each. Observe
several different schools and see whether you can note a characteristic
mood for each room. Try to determine the causes producing the
differences noted. (Physical conditions in the room, personality of t