Muhammad Ali

"A warrior's greatest weapon is patience."

"The most important battles are fought within."

"When you stop fighting for what you believe, you've already lost."

"Family is the cornerstone of everything."

"Love is the most powerful force in the universe."

"The quality of your relationships determines the quality of your life."

"Respect is earned, not given."

"Your potential is limitless if you believe it is."

"Tomorrow is reserved for those who shape it today."

"The greatest gift you can give is your time."

"Wisdom comes from understanding, not just knowledge."

"Service to others is the rent you pay for your room here on Earth."

"Don't count the days, make the days count."

"He who is not courageous enough to take risks will accomplish nothing in life."

"Impossible is nothing."

"I hated every minute of training, but I said, 'Don't quit. Suffer now and live the rest of your life as a champion.'"

"At the day of judgment, we will not be asked what we have read, but what we have done."

"Keep your words soft and sweet, in case you have to eat them."

"The man who has no imagination has no wings."

"Friendship is not something you learn in school. But if you haven't learned the meaning of friendship, you haven't learned anything."

"Inside of a ring just like outside the ring, you gotta be real."

"The service you render to others is the rent you pay in this world."

"Believe in yourself. The mind always makes the body."

"I am the greatest, I said that even before I knew I was."

"A man who views the world the same at fifty as he did at twenty has wasted thirty years of his life."

"Lay down and die, or keep fighting - it's always your choice."

"I believe in the power of yet. It's only impossible if you believe it's impossible."

"Don't think about fighting in the ring. Just fight."

"What keeps me going is goals."

"Turning obstacles into opportunities is an art."