"There is a lot more in him than you guess, and a deal more than he has any idea of himself." — J.R.R. Tolkien

This thing all things devours:

Birds, beasts, trees, flowers;

Gnaws iron, bites steel;

Grinds hard stones to meal;

Slays king, ruins town,

And beats high mountain down.

...but things that are good to have and days that are good to spend are soon told about, and not much to listen to.

The mere fleeting glimpses of treasure which they had caught as they went along had rekindled all the fire of their dwarvish hearts; and when the heart of a dwarf, even the most respectable, is wakened by gold and by jewels, he grows suddenly bold, and he may become fierce.