God wants us to follow our present conviction of duty until by investigation we discover a better one. Thus God guides the individual in his conduct through his conscience enlightened by the Holy Spirit (Rom. 9:1). But this guidance is only for the individual. It has a fallible element in it that needs to be improved by constant and vigilant readjustment as the individual increases his knowledge and sharpens his conscience by exercise (Rom. 12:2). Alas! how much mischief has come from neglect of these facts. How many have tried to thrust the leadings of their conscience on others, in and out of creeds. Again, how many good people have become self-righteous and despised those who differed from them because they mistook matters of opinion and expediency as matters of conscience, through failing to recognize the fallible, variable element in their conscience. How foolish we act if we do not keep in mind these distinctions. The infidel who claimed that he was unhappy because he knew too much, and that Christians are happy because they are deluded, and then promulgated his misery-producing doctrine for conscience' sake, is an illustration of the absurdity into which a sensitive but perverted conscience will lead a person. But yesterday I met a very conscientious young man who left the ministry because he could not agree, with members of the church he was serving, on matters of expediency. On my table lies a letter recently received from a young man who graduated for the ministry last spring, but through doubts, similar to those I formerly experienced, left the ministry for conscience' sake. This unhappiness of doubters and this testimony of their consciences, even while they hold opinions that logically rob conscience of any authority, should cause every one to think; and is strong evidence that skepticism is unnatural and fundamentally wrong. I followed rationalism into infidelity for conscience' sake. I gave up belief in the miraculous and supernatural in the Bible _for conscience' sake_. But after the rationalists had driven me to this bitter end, through my sensitive conscience, I was gravely informed that conscience was a mere creature of education and therefore should only be followed conditionally. I discovered sufficient truth in this claim to open my eyes to the fact that I had been deceived and had followed the fallible part of my conscience, which is a creature of education, as though it were infallible and the voice of God.