Samuel L. Jackson/WMG

Samuel L. Jackson riding a bear is the most dangerous force in the universe.
Have you ever seen Samuel L. Jackson riding a bear? No?

That's because everyone who has ever seen Samuel L. Jackson riding a bear is already dead.
 * What about the bear?

Samuel L. Jackson has geass.
This.

Samuel L Jackson is Teddy Roosevelt.
You thought his memetic badassery would die out? WRONG! Samuel L Jackson is the reincarnation of Teddy Roosevelt. After Death took him in his sleep, Roosevelt tried to take over Heaven and Hell. Because of this, God and Satan were forced to put him in the mortal coil again. And thus, Samuel L Jackson came into being.

Time Lord
Just look at the guy! He's 62.