Don’t just learn, experience. Don’t just read, absorb. Don’t just change, transform. Don’t just relate, advocate. Don’t just promise, prove. Don’t just criticize, encourage. Don’t just think, ponder. Don’t just take, give. Don’t just see, feel. Don’t just dream, do. Don’t just hear, listen. Don’t just talk, act. Don’t just tell, show. Don’t just exist, live.

Roy T. Bennett, The Light in the Heart

Try to learn to breathe deeply, really to taste food when you eat, and when you sleep, really to sleep. Try as much as possible to be wholly alive with all your might, and when you laugh, laugh like hell. And when you get angry, get good and angry. Try to be alive. You will be dead soon enough.
—  Ernest Hemingway

When I was 5 years old, my mother always told me that happiness was the key to life. When I went to school, they asked me what I wanted to be when I grew up. I wrote down happy. They told me I didn’t understand the assignment, and I told them they didn’t understand life.

John Lennon