Faith in a prayer-hearing God will make a prayer-loving Christian.

I've been asked a lot lately if tennis is clean or not. I don't know any more how you judge whether a sport is clean. If one in 100 players is doping, in my eyes that isn't a clean sport.

Shut the world out, withdraw from all worldly thoughts and occupations, and shut yourself in alone with God, to pray to Him in secret. Let this be your chief object in prayer, to realize the presence of your heavenly Father.

Davis Cup, you know, does take a lot out of you over the weekend. It's tough, especially if you play all three days.

Some people pray just to pray and some people pray to know God.

O, let the place of secret prayer become to me the most beloved spot on earth.

The world asks, "What does a man own?"; Christ asks, "How does he use it?"