All You Need Is (More Than) Love

Some reflections on The Beatles' song/purported-advice 58 years after. 
Does it hold up? Was it ever true?

Nope.

Well, what then? What is needed, and how do you get it?

I prefer the words of Procol Harum: "For the answer lies in learning, and in teaching we are taught. There's nothing hidden anywhere, it's all there to be sought."