Galileo Galilei was a famous Italian physicist, astronomer and philosopher, universally known as “Father of Science”. Many modern day inventions and discoveries were possible only due to the theories and hypothesis he proposed during the 17th century. His contributions include telescopic confirmation of Phases of Venus, Satellites of Jupiter (named Galilean moon), Military Compass and Global Satellite Navigation System. His written works include ‘The Little Balance’, ‘The Starry Messenger’ and ‘Letter to the Grand Duchess Christina’. His works and writings express his thoughts on several subjects such as philosophy, astronomy, God, religion and scriptures and these have become quite popular as his quotes. In honor of this great philosopher, a low cost telescope with high quality named Galileoscope was released in 2009 enabling numerous people to view the same things that the Legend himself saw. Many references of Galileo have been made in modern age plays, songs and theatres. Go through these inspiring and philosophical thoughts, sayings and quotes by Galileo Galilei on evolution, wisdom, faith, experiment, belief, art, teaching, reason, truth, nature, math, astronomy, observation, opinion, authority, beauty and religion.