This quote can be found here, along with many other wonderful quotes that I will not be listing.
“Some people grumble that roses have thorns; I am grateful that thorns have roses.”
― Alphonse Karr
This one was found here.
At times our own light goes out and is rekindled by a spark from another person. Each of us has cause to think with deep gratitude of those who have lighted the flame within us. — Albert Schweitzer