I love this quote by Ralph Waldo Emerson.
"To laugh often and much
To win the respect of intelligent people and the affection of children
To earn the appreciation of honest critics and endure the betrayal of false friends
To appreciate beauty, to find the best in others
To leave the world a bit better, whether by a healthy child, a garden patch or a redeemed social condition
To know even one life has breathed easier because you have lived.
This is to have succeeded"