Darkness cannot drive out darkness； only light can do that.Hate cannot drive out hate； only love can do that.

"The biggest weapon on the court is not your forehand or backhand—it's your mind."

Every life contains its own mysteries, and the biographer must respect the unknowable.

写作是一种不被干扰的说话方式。

We are all searching for something, but we don't know what it is.