Without imperfection, you or I would not exist.
"The key to good research is not just the method, but the clarity of the question and the quality of the data."
爱护别人的人,别人也必定爱护他;有利于别人的人,别人也必定有利于他;憎恶别人的人,别人也必定憎恶他;伤害别人的人,别人也必定伤害他。