"Property And Land" joke

The things that lawyers know about,
Are property and land.
But why the leaves are on the trees;
And why the waves disturb the seas;
Why honey is the food of bees;
Why horses have such tender knees;
Why winters come when rivers freeze;
Why faith is more than what one sees;
And hope survives the worst disease;
And charity is more than these,
They do not understand.