C. S. Lewis, my favourite definition https://t.co/4eLQGS28nM

Love goes very far beyond the physical person of the beloved. It finds its deepest meaning in his spiritual being, his inner self. Whether or not he is actually present, whether or not he is still alive at all, ceases somehow to be of importance.
Viktor E. Frankl • Man's Search for Meaning
The purpose of love is to enhance the well-being of another, not to satisfy your own desires. Therefore, learning to speak another person's primary love language is the most effective way of loving others.
Gary Chapman • The Five Love Languages Singles Edition
if there’s one thing the God of the Bible demonstrates about love, it is that it is not primarily a feeling. It’s a commitment.
Brett McCracken • Uncomfortable: The Awkward and Essential Challenge of Christian Community
Emotional love does not think much of truth. It makes the truth relative, since nothing, not even the truth, must come between it and the person loved. Emotional love desires other persons, their company. It wants them to return its love, but it does not serve them. On the contrary, it continues to desire even when it seems to be serving.