"Many think it a sermon; many set it down as an attempt to rearrange society; some think it an excuse for nature-loving; some find it a rather irritating collection of inspirational puffballs by an eccentric show-off. I think it none of these. It still seems to me the best youth's companion yet written by an American, for it carries a solemn warning against the loss of one's valuables, it advances a good argument for traveling light and trying new adventures, it rings with the power of powerful adoration, it contains religious feeling without religious images, and it steadfastly refuses to record bad news."