We are spinning our own fates, good or evil, and never to be undone. Every smallest stroke of virtue or of vice leaves its never so little scar. ...Nothing we ever do is, in strict scientific literalness, wiped out.

Once you accept an idea, it's an idea whose time has come.

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

Whenever two people meet, there are really six people present. There is each man as he sees himself, each man as the other person sees him, and each man as he really is.

You make a great, very great mistake, if you think that psychology, being the science of the mind's laws, is something from which you can deduce definite programmes and schemes and methods of instruction for immediate schoolroom use.

The question of free will is insoluble on strictly psychological grounds.

Whenever you're in conflict with someone, there is one factor that can make the difference between damaging your relationship and deepening it. That factor is attitude.