Answer:
“To live is the rarest thing in the world. Most people exist, that is all.”-Oscar Wilde.
Oscar Wilde in search of those few beings who really life in their life
This also relates with the Quote #1 as both philosophies are fundamentally same but presented with different point of views.
Oscar said by comparing “life” and “existence” of people whereas Miley related the real life by having a good time.
To take the practical benefit of this quote one should be continuously improving the way he or she lives in life.