The greatest discovery of my generation is that a human being can alter his life by altering his attitudes.

I know that you, ladies and gentlemen, have a philosophy, each and all of you, and that the most interesting and important thing about you is the way in which it determines the perspective in your several worlds.

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

We forget that every good that is worth possessing must be paid for in strokes of daily effort. We postpone and postpone until those smiling possibilities are dead... By neglecting the necessary concrete labor, by sparing ourselves the little daily tax, we are positively digging the graves of our higher possibilities.

Each of us is in fact what he is almost exclusively by virtue of his imitative-ness.

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.

How to gain, how to keep, how to recover happiness is in fact for most men at all times the secret motive of all they do, and of all they are willing to endure.