He understands not only with his brain but with his heart. And that might be called love. Not quite sure, but maybe that's the key.

When someone speaks from the heart, one should listen to them

[About his legacy:] I'll be all right so long as it has been written on some corner of a human heart. On the heart, it doesn't matter how you spell it.

I write with all my heart

What is uttered from the heart alone will win the heart of others to your own.

It is the heart always that sees, before the head can see.

I wrote the song from my heart

For his heart was in his work, and the heart
Giveth grace unto every Art.

For his heart was in his work, and the heart giveth grace unto every art.

If you talk to a man in a language he understands, that goes to his head.
If you talk to him in his language, that goes to his heart.

He could hardly read or write but his heart spoke the language of the good

The mind of writing never tires
When the heart's partner in the work.

I only talk from my heart so open yours when you listening

If you talk to a man in a language he understands, that goes to his head. If you talk to him in his language, that goes to his heart.