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.
“Medical research in the twentieth century mostly takes place in the lab; in the Renaissance, though, researchers went first and foremost to the library to see what the ancients had said.”
“You are today where your thoughts have brought you; you will be tomorrow where your thoughts take you.”