I've always lived by "put the least amount of effort to achieve the most optimal results." So using school as a for instance. If it takes me 12 hours of studyi

I've always lived by "put the least amount of effort to achieve the most optimal results." So using school as a for instance. If it takes me 12 hours of studying a week to ensure an A, but only 2 hours a week to ensure a B, is the additional 10 hours wasted studying really worth it? Nope. Much rather make my life more enjoyable.