General scepticism is the live mental attitude of refusing to conclude. It is a permanent torpor of the will, renewing itself in detail towards each successive thesis that offers, and you can no more kill it off by logic than you can kill off obstinacy or practical joking.

Psychology is a science, and teaching is an art; and sciences never generate arts directly out of themselves.

I originally studied medicine in order to be a physiologist, but I drifted into psychology and philosophy from a sort of fatality. I never had any philosophic instruction, the first lecture on psychology I ever heard being the first I ever gave.

It is astonishing how many mental operations we can explain when we have once grasped the principles of association

A great many people think they are thinking when they are merely rearranging their prejudices.

The union of the mathematician with the poet, fervor with measure, passion with correctness, this surely is the ideal.

The exercise of voluntary attention in the schoolroom must therefore be counted one of the most important points of training that take place there; and the first-rate teacher, by the keenness of the remoter interests which he is able to awaken, will provide abundant opportunities for its occurrence.