But it is the bane of psychology to suppose that where results are similar, processes must be the same. Psychologists are too apt to reason as geometers would, if the latter were to say that the diameter of a circle is the same thing as its semi-circumference, because, forsooth, they terminate in the same two points.

To be fertile in hypotheses is the first perquisite of creativity and to be willing to throw them away the moment experience contradicts them is the next.

Every time a resolve or a fine glow of feeling evaporates without bearing practical fruit is worse than a chance lost; it works to hinder future resolutions and emotions from taking the normal path of discharge. There is no more contemptible type of human character than that of the nerveless sentimentalist and dreamer, who spends his life in a weltering sea of sensibility and emotion, but who never does a manly concrete deed.

Habit is a second nature, or rather, it is 'ten times nature'.

The total possible consciousness may be split into parts which co-exist but mutually ignore each other.

Cramming seeks to stamp things in by intense application immediately before the ordeal. But a thing thus learned can form but few associations.

Don't preach too much to your pupils or abound in good talk in the abstract. Lie in wait rather for the practical opportunities, be prompt to seize those as they pass, and thus at one operation get your pupils both to think, to feel, and to do.