I knew that the Hague Convention prohibited the use of poison in war. I didn't know the details of the terms of the Convention, but I did know of that prohibition.
“You automatically are trusting because not only is the person a friend, they are so incredibly gifted that you know someone is going to be able to hit the ball back to you across the net.”
“Be not content with the best book; seek sidelights from the others; have no favourites.”