John Cleese

"The problem with the world is that the intelligent people are full of doubts and the stupid ones are full of confidence."

"One thing we have learned from history is that people don't learn from history."

"You don't have to see the whole staircase, just take the first step."

"The greatest threat to our planet is the belief that someone else will save it."

"If you don't want to get old, don't mellow."

"Idleness is only a relief to the industrious."

"The person who makes no mistakes does not try new things."

"Laughter is the shortest distance between two people."

"Art is about making something out of nothing, and selling it."

"If you want to understand any problem in America, you need to understand its history."

"Patience is not the ability to wait, it's the attitude we have while waiting."

"The mind is everything. What you think, you become."

"Communication is not about saying things. It's about making connections."

"Beauty is not in the face. Beauty is the light in the heart."

"Success is not final, failure is not fatal: the courage to continue is what matters."

"The only way to do great work is to love what you do."

"Don't look back in anger, just look back in thought."

"Always remember that the future comes one day at a time."

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

"If you're not failing, you're not trying."

"The greatest glory in living lies not in never falling, but in rising every time we fall."

"An investment in knowledge pays the best interest."

"The only constant in life is change itself."

"Happiness is when what you think, what you say, and what you do are in harmony."

"The future belongs to those who believe in the beauty of their dreams."

"It is during our darkest moments that we must focus to see the light."

"Well-behaved women seldom make history."

"The only true wisdom is in knowing you know nothing."

"Life is either a daring adventure or nothing at all."

"The best time to plant a tree was 20 years ago. The second best time is now."