Here are some of the amazing chapters:
PART III. CONTAINING COUNSELS CONCERNING THE PRACTICE OF VIRTUE.
CHAPTER I. How to select that which we should chiefly Practise.
CHAPTER II. The same Subject continued.
CHAPTER III. On Patience.
CHAPTER IV. On Greater Humility.
CHAPTER V. On Interior Humility.
CHAPTER VI. Humility makes us rejoice in our own Abjection.
CHAPTER VII. How to combine due care for a Good Reputation with Humility.
CHAPTER VIII. Gentleness towards others and Remedies against Anger.
CHAPTER IX. On Gentleness towards Ourselves.
CHAPTER X. We must attend to the Business of Life carefully, but without Eagerness or Over-anxiety.
CHAPTER XI. On Obedience.
CHAPTER XII. On Purity.
CHAPTER XIII. How to maintain Purity.
CHAPTER XIV. On Poverty of Spirit amid Riches.
CHAPTER XV. How to exercise real Poverty, although actually Rich.
CHAPTER XVI. How to possess a rich Spirit amid real Poverty.
CHAPTER XVII. On Friendship: Evil and Frivolous Friendship.
CHAPTER XVIII. On Frivolous Attachments.
CHAPTER XIX. Of Real Friendship.
CHAPTER XX. Of the Difference between True and False Friendship.
CHAPTER XXI. Remedies against Evil Friendships.
CHAPTER XXII. Further Advice concerning Intimacies.
CHAPTER XXIII. On The Practice of Bodily Mortification.
CHAPTER XXIV. Of Society and Solitude.
CHAPTER XXV. On Modesty in Dress.
CHAPTER XXVI. Of Conversation; and, first, how to Speak of God.
CHAPTER XXVII. Of Unseemly Words, and the Respect due to Others.
CHAPTER XXVIII. Of Hasty Judgments.
CHAPTER XXIX. On Slander.
CHAPTER XXX. Further Counsels as to Conversation.
CHAPTER XXXI. Of Amusements and Recreations: what are allowable.
CHAPTER XXXII. Of Forbidden Amusements.
CHAPTER XXXIII. Of Balls, and other Lawful but Dangerous Amusements.
CHAPTER XXXIV. When to use such Amusements rightly.
CHAPTER XXXV. We must be Faithful in Things Great and Small.
CHAPTER XXXVI. Of a Well-Balanced, Reasonable Mind.
CHAPTER XXXVII. Of Wishes.
CHAPTER XXXVIII. Counsels to Married People.
CHAPTER XXXIX. The Sanctity of the Marriage Bed.
CHAPTER XL. Counsels to Widows.
CHAPTER XLI. One Word to Maidens.
PART IV. CONTAINING NEEDFUL COUNSELS CONCERNING SOME ORDINARY TEMPTATIONS.
CHAPTER I. We must not trifle with the Words of Worldly Wisdom.
CHAPTER II. The need of a Good Courage.
CHAPTER III. Of Temptations, and the difference between experiencing them and consenting to them.
CHAPTER IV. Two striking Illustrations of the same.
CHAPTER V. Encouragement for the Tempted Soul.
More on St. Francis de Sales here.