I myself believe that the evidence for God lies primarily in inner personal experiences.

True ideas are those that we can assimilate, validate, corroborate, and verify. False ideas are those that we cannot. That is the practical difference it makes to us to have true ideas; that therefore is the meaning of truth, for it is all that truth is known as.

Compared with men, it is probable that brutes neither attend to abstract characters, nor have associations by similarity. Their thoughts probably pass from one concrete object to its habitual concrete successor far more uniformly than is the case with us. In other words, their associations of ideas are almost exclusively by contiguity. So far, however, as any brute might think by abstract characters instead of by association of con cretes, he would have to be admitted to be a reasoner in the true human sense. How far this may take place is quite uncertain.

The world is all the richer for having a devil in it, so long as we keep our foot upon his neck.

Much of what we call evil is due entirely to the way men take the phenomenon. It can so often be converted into a bracing and tonic good by a simple change of the sufferer's inner attitude from one of fear to one of fight; its string can so often depart and turn into a relish when, after vainly seeking to shun it, we agree to face about and bear it.

A new idea is first condemned as ridiculous and then dismissed as trivial, until finally, it becomes what everybody knows.

In the acquisition of a new habit, or the leaving off of an old one, we must take care to launch ourselves with as strong and decided an initiative as possible.