A two line quotation/sentence is not always a good one, cause good writings are minimalist. However sometime a concept is complicated enough where you require that length/ or our understanding of it is not complete enough to describe it efficiently or effectively.
We humans have a habit of making everything better or intense all the times. Every time we hear it, we try to make it better and communicate on, using more words or less words.
More words is lack of understanding or maybe a definition. Less is good. Finally the use of words become so less that we can describe it with one word or no words.
The purpose of quotation is actually to communicate something, fact, feeling thought or desire or whatever.
So the best ones out there are unsaid, unwritten. Now the question is how many such facts we know, what desires we have of that kind, and words need not spoken.
Let me demonstrate that in an example,
Life is Love, or
Love is Life,
then,
Love Life,
Life Love,
Then choice is obvious, either Love or Life, or a third word to combine them (such as Me),
I will shortened it to
Life,
My Quotation: Love is the secondary quality used to express a quality of life.
And maybe some people don’t like to divide things or because it compromises the wholeness of it.
Some of them would choose Love or Life, depending on their emotional state or maybe level of understanding.
Life
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Neomodern 