not to be a smartass but i think you shortened it yourself
the low times in your life are what make the great times special, and not to take the great times for granted
you can get it multiple ways. my buddy has a whole quote starting at his mid bicep wrapping all the way done to his forearm. you can also split up the saying
“low times make great times special”
“never take what you have for granted”
you can put one quote on one arm, the other on the other arm(or leg whatever.