"Actually leeches are used extensively in the medical field for one thing. As for mosquitoes their larva are a source of forage for young fish." Aside from philosophy Perceval had an extensive knowledge of natural science, history, and spoke more languages than he could rightfully recall. With an ages long life came ages to study and ponder not to mention watching the world around you change and develop.<br/><br/>But he did not mention or hardly acknowledge he reference to crushing feelings of grief. Oh he felt disappointment at her father's passing and he was trying not to prey on her pretending his sense of propriety was not long dead. The thing was he cared little for feelings and pleasures except his own and after spending centuries watching those around you wither and die one became rather numb tot he sensation.