Einstein, considered to be the greatest genius in history, once faced this situation while giving a guest lecture at a university.
A student asked Einstein, who had just finished giving a physics lecture, the following:
“Professor, you have discovered the theory of relativity and managed to formularise it. Could you express love as an algebraic formula?”
Einstein thought for a while, then smiled as he wrote this equation on the board:
LOVE = 2△ + 2□ + 2~ + 4/
The students were confused and asked him to explain it further. He then solved it as shown below:
“The sorrow of having to take a path you must take, yet not being able to resist looking back over and over! The frustration of wanting to follow a path you cannot take! That is love.”
(Source: http://xkcd.com/55/)