The only thing necessary for the triumph of evil is for good men to do nothing.

True terror is to wake up one morning and discover that your high school class is running the country.

Coal has powered our past, but we must be honest about its role in our future.

"The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart."

Mathematics is the art of asking the right questions and then finding their answers.