Seems a little weird to make your life mantra a meme phrase anyways.

Mine is the motto from my high school lacrosse team, of all things. I was 15, an angsty teenager, the team sucked and lost most our games. But our coach was relentlessly positive. The motto was a Latin phrase that roughly translates to "if you're going to do something, commit to it". Basically, no half ass efforts. That stuck with me all the way through until 11 years later when I had it incorporated into a tattoo design.

Whatever intrinsic motivation you pick, it's gotta have a little more meaning to you than being the flavor of the month on the internet, or it will always lose its magic.