Imagination is more important than knowledge. The purpose of human life is to serve and to show compassion and the will to help others. Creativity is the ability to introduce order into the randomness of nature. Life is an exciting business and most exciting when it is lived for others. You cannot do much about the length of your life, but you can do a lot about its depth and width.
The quote is an amalgamation of multiple quotes by Albert Einstein, Charles Baudelaire, Albert Schweitzer, Eric Hoffer, Helen Keller and Evan Esar.