Tennis is a brutal sport. There are no draws. If you lose, you’re out. You have to be ready to accept that.

The beauty of physics lies in its ability to reveal the profound simplicity underlying the apparent complexity of the universe.

"The only real voyage of discovery consists not in seeking new landscapes, but in having new eyes."

We are all just trying to find our way in the dark.

A true friend is the one who holds your hand and touches your heart.

In science, the credit goes to the person who convinces the world, not to the person to whom the idea first occurs.