It would be perfectly safe for our youth to enter the colleges of our land if they were converted every day; but if they feel at liberty to be off guard one day, that very day Satan is ready with his snares, and they are overcome and led to walk in false paths—forbidden paths, paths that the Lord has not cast up. 3SM 231.1
Now, shall professed Christians refuse to associate with the unconverted, and seek to have no communication with them? No, they are to be with them, in the world and not of the world, but not to partake of their ways, not to be impressed by them, not to have a heart open to their customs and practices. Their associations are to be for the purpose of drawing others to Christ. 3SM 231.2
The Influence of Error Repeatedly Presented—Here is the danger of our youth. The attractions in these institutions are such, and the teaching so intermixed with error and sophistry, that they cannot discern the poison of sentiment mingled with the useful and precious. There is such an undercurrent, and it works in such a manner that many do not perceive it, but it is constantly at work. Certain ideas are constantly advanced by the professors, and repeated over and over, and at last the mind begins to assimilate and conform to these ideas. 3SM 231.3
Just so when infidel authors are studied. These men have sharp intellects, and their sharp ideas are presented, and the mind of the student is influenced by them; they are pleased with their brilliance. 3SM 232.1
But where did those men obtain their powers of intellect? Where did they get their sharpness? From the fountain of all knowledge. But they have prostituted their powers; they have given them as a contribution to the devil, and don't you think the devil is smart? Many are traveling in the devil's tracks by reading infidel authors. Satan is a sharp being, and they fall in love with his learning and smartness.—Manuscript 8b, 1891. 3SM 232.2