Richelle E. Goodrich said this quote

The road of life is paved with daily successes, a great number of them penny and nickle triumphs. Sadly, these little feats are often seen as worthless―even failures―because we dream of greater gain. Our greed keeps us focused on a gleaming pot of gold waiting at the end of some elusive rainbow. And, despairing a big loss, we fail to see the value in small achievements.