The idealists and relativists are not mentally sick. They prove their soundness by living their lives according to the very notions of reality which they in theory repudiate and by counting upon the very fixed points which they prove are not there. They could earn a lot more respect for their notions if they were willing to live by them; but this they are careful not to do. Their ideas are brain-deep, not life-deep. Wherever life touches them they repudiate their theories and live like other men.

The Christian is too sincere to play with ideas for their own sake. He takes no pleasure in the mere spinning of gossamer webs for display. All his beliefs are practical. They are geared into his life. By them he lives or dies, stands or falls for this world and for all time to come. From the insincere man he turns away.