(_b_) _Prejudice_, the result of ignorance and pride, or simply of ignorance and a warped judgment, owing to false instruction. There can be little chance through ignorance of going wrong in the main, broad principles of duty to our neighbours, but imperfect teaching or erroneous teaching relative to our duties to God, may well be the cause of our failing to perform, or performing inadequately, or performing wrongly our duties due to Him. Hence we require a sure moral guide to expound to us the law of God, and this God has given us in His Church. (_c_) _Passion_, or concupiscence, which induces the Conscience to permit whatever flatters or gratifies the body or the mind. S. Paul says that in his natural state, "That which I do I allow not; for what I would that do I not; but what I hate, that do I ... to will is present with me; but how to perform that which is good I find not. For the good that I would I do not, but the evil that I would not, that I do." He is here picturing himself in his old, carnal, unregenerate state, but under grace, it is other, there Divine help is given to enable the will to submit to the law of God and cast out the domination of the carnal appetites. (_d_) _Lax public opinion_, which sets up a low moral standard, and brings Consciences to sleep, so long as they conform to public opinion, and make that the rule _instead of the law of God_. This is a great means of blunting and deadening Conscience, for it sets up man as a supreme authority in morals in the place of God, it makes the judgments of the world override the revealed Will of God. [Illustration] First Monday in Lent. _CAUSES OF DIFFERENT KINDS OF CONSCIENCE._ (CONTINUED.) Conscience may _command_, _forbid_, _advise_, _permit_. (_a_) Conscience, when certain as to the moral right of a course of action, utters its peremptory command that it shall be done. We often are satisfied with a negative obedience, and consider ourselves discharged from all obligation to render positive obedience. For the commandments are negative. "Thou shalt not" do this or that. So, if we abstain from murder, theft, adultery, &c., we are satisfied that we are fulfilling the law. But in the Gospel the negative law, or law of prohibition, is not only greatly expanded, but it is turned into a positive law. "Thou shalt love God with all thy heart," &c., and "Thou shalt love thy neighbour as thyself." It is a bit of self-delusion for anyone to suppose that he is fulfilling the law of his being if he merely abstains from those things prohibited. We have positive obligations laid on us, and these positive obligations the enlightened and healthy Conscience points out to us. Not only must we abstain from anger, but we must cultivate love. Not only must we avoid revenge, but we must do good to them that despitefully use us and persecute us. Not only must we avoid gluttony and drunkenness, but we must cultivate self-denial.