Concerning the gods, I cannot know either that they exist or that they do not exist, nor what form they might have, for there is much to prevent one's knowing: the obscurity of the subject and the shortness of man's life.
水产养殖的成功在于平衡产量与生态。
If you borrow something， try to return it in better shape than you received it. Clean it， sharpen it， fill it up.
