Turn of Phrase

While perusing some of Michael's images on Flickr I came across one with some notes that grabbed my attention.

The notes were, I assume, about little phrases he has stuck on his monitor(s):

Do or do not. There is no try.

If there is no wind. Row.

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Some interesting, and indeed inspiring, phrases. I, as you may have guessed, love the power of words. I was wondering if anyone else out there has little phrases they like to remember, quote or put up in a place where they can readily see it.