David Brainerd — American Clergyman

David Brainerd was an American missionary to the Native Americans who had a particularly fruitful ministry among the Delaware Indians of New Jersey. During his short life he was beset by many difficulties. As a result, his biography has become a source of inspiration and encouragement to many Christians, including missionaries such as William Carey and Jim Elliot, and Brainerd's cousin, the Second Great Awakening evangelist James Brainerd Taylor... (wikipedia)

Once more, Never think that you can live to God by your own power or strength; but always look to and rely on him for assistance, yea, for all strength and grace.
If you hope for happiness in the world, hope for it from God, and not from the world.
Further, Take heed that you faithfully perform the business you have to do in the world, from a regard to the commands of God; and not from an ambitious desire of being esteemed better than others.
Again, Be careful to make a good improvement of precious time.
Worldly pleasures, such as flow from greatness, riches, honours, and sensual gratifications, are infinitely worse than none.