The greater danger for most of us lies not in setting our aim too high and falling short; but in setting our aim too low, and achieving our mark.
Michelangelo

The goals we set should be high enough to require an effort, even take us outside our comfort zone, and be worth achieving.

I’ve seen this quote before, today it turned up in “The Element – How finding your passion changes everything” by Sir Ken Robinson. That’s a great book.