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attained supreme happiness when he has gratified every whim and caprice to which his instincts guide
him.
This purely instinctual life is the life of an animal. An animal lives according to its instincts-eats according to them, sleeps according to them and mates according to them. Its behaviour is a series of impulses dictated by one or other of its instincts. Hence men who behave thus, belong to the class which is governed by animality.
The next class is of those who are governed by thought processes. Theirs is a nature which is a mingling of mind and instincts; but they are weak and indecisive. The man who belongs to this category is, at times, tempted to follow the dictates of an instinct; his intellect warns him of the dangers which beset this contemplated course of action, and his behaviour in any given situation depends on whether his instincts triumph or his intellect; but he is torn in the conflict. However, in him we see at least the shadow of humanity. Even when he gives way to his instincts where he should not, his intellect tells him that what he has done is wrong. He lies, but feels that it is wrong to do so. Such a man, if he is a drunkard, may himself too often succumb to the temptation,
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