I just found this, it's pretty touching and interesting to see how kids think about this subject.
A group of professional people posed this question to a group of 4 to 8 year-olds, ‘What does love mean?’
The answers they got were broader and deeper than anyone could have imagined
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‘Love is when my mommy makes coffee for my daddy and she takes a sip before giving it to him, to make sure the taste is OK.’. Danny - age 7
‘If you want to learn to love better, you should start with a friend who you hate, ’.Nikka - age 6
‘When you love somebody, your eyelashes go up and down and little stars come out of you.’ Karen - age 7