Homage to the humble wick

who, these days, would think of such a simple invention? Take a small amount of oil, suspend a wick in it, wait a few minutes for capillary action to draw the oil up to the top of the wick and then light it! Genius! I'm sure it's been in use for more than 5 millenia and for most of that time no one had the faintest idea how it worked.