Muhammad Ali

"Gratitude is the foundation upon which all other virtues are built"

"Hope is not a feeling; it's a choice we make every single day"

"The death of a dream is worse than physical death"

"Nature teaches us that change is the only constant in existence"

"Power without purpose is just noise"

"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."

"At the age of thirty, my heart still appreciates a beautiful woman."

"What keeps me going is goals."

"Hating people because of their color is wrong. And it doesn't matter which color does the hating."

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

"He's a man of mystery to most people, but there's nothing mysterious about his fighting style."

"Friendship is the hardest thing in the world to explain. It's not something you learn in school."

"The creation of a thousand forests is in one acorn."

"Pay attention to how a person treats those who can do nothing for them."

"Experience is the best teacher, but sometimes the lessons are hard to learn."

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

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

"Silence is golden when you can't think of anything good to say."

"The wall is the only thing that hasn't moved."

"If you even dream of beating me, you'd better wake up and apologize."

"Inside of its thick walls, I learned that conformity is not just the price, but the price of a confused society."

"Better to be a lion for a day than a sheep all your life."

"The most important thing is that you believe in yourself even when no one else does."

"Anger is not something you're born with. It gets taught."

"Whatever you decide to do, make sure it's what YOU want to do."

"Life is short, make it sweet."

"A man who has no fear of losing is a dangerous man."