It is the mind that makes the body.

The hardship of the exercises is intended less to strengthen the back than to toughen the mind. The Spartans say that any army may win while it still has its legs under it; the real test comes when all strength is fled and the men must produce victory on will alone.

You become what you believe, not what you think or what you want.

If the Devil can only make you think that you are abused or ill treated, and you begin to fret about it, and you give the Devil power over you - in the end, it is as bad as though you had done wrong yourself.

That's not the way I think, 'I'm the smallest guy on the field, I have to go out there and do this and do that.' I just go out there and play.

If I dwell on what I don't want, then I will get more of it. I affirm only the good in Life.

Theoretical physics is one of the few fields in which being disabled is no handicap - it is all in the mind.

To be candid, some people have given positive thinking a bad name. I can't stand to hear some gung-ho individual say that with positive thinking you can just do 'anything.' If you think about that one for a moment, you recognize the absurdity of it.

That all is as thinking makes it so — and you control your thinking. So remove your judgements whenever you wish and then there is calm - as the sailor rounding the cape finds smooth water and the welcome of a waveless bay.

Disgraceful: for the soul to give up when the body is still going strong.

Reject your sense of injury, and the injury itself disappears.

In reduced circumstances you have to believe all kinds of things. I believe in thought transference now, vibrations in the ether, that sort of junk. I never used to.