Complex sentence: He exhibited early his lifelong interest in the natural world, and in spite of a slight speech impediment and facial scarring from a youthful experiment with gunpowder he was at ease with all levels of society.
Split into simpler sentences: He exhibited early his lifelong interest in the natural world. In spite of a slight speech impediment and facial scarring from a youthful experiment with gunpowder, he was at ease with all levels of society.